Photo Composition Prompt Generator - Educational Manual for Students

🎯 1. Introduction to Prompt Engineering for Image Composition

Learning Objectives:

Understand what prompt engineering is and its role in AI-assisted image editing
Learn the purpose and workflow of composition prompt generation
Recognize the difference between image generation and image composition
Identify real-world applications in digital media production

1.1 What is Prompt Engineering?

Definition

Prompt Engineering is the practice of crafting precise, detailed instructions (prompts) that guide AI systems to produce desired outcomes. In the context of image composition, it involves creating specifications that tell an AI tool exactly how to combine multiple images into a cohesive final result.

This tool helps you create structured, professional prompts for AI-powered image composition tools like Claude, ChatGPT with image capabilities, Adobe Firefly, or specialized composition software.

1.2 Image Composition vs. Image Generation

Aspect	Image Generation	Image Composition
Input	Text description only	Existing images + specifications
Process	Creates new images from scratch	Combines existing images
Output	Synthetic/generated content	Layered composition of real images
Control	Limited control over specific details	Precise control over each element
Use Case	Creating new artwork, concepts	Photo editing, realistic composites

This tool creates composition prompts, not generation prompts. You must have existing images to work with. The prompt tells AI how to combine YOUR images, not how to create new ones.

1.3 Real-World Applications

Advertising & Marketing: Product photos with custom backgrounds
Social Media Content: Instagram posts, stories, collages
E-commerce: Product presentations with lifestyle contexts
Photography: Artistic composites, double exposures
Graphic Design: Posters, promotional materials
Web Design: Hero images, banners

1.4 Prerequisites

Before using this tool effectively, you should have basic knowledge of:

Digital image formats (JPG, PNG, TIFF)
Basic photo editing concepts
Understanding of layers (from Photoshop, GIMP, etc.)
Familiarity with AI image processing tools

📚 2. Fundamental Concepts

Learning Objectives:

Master core concepts of digital image composition
Understand layer-based editing paradigm
Learn image coordinate systems and positioning
Grasp fundamental color and lighting principles

2.1 The Layer System

Understanding Layers

A layer is an independent image element that can be manipulated separately from other elements. Layers stack on top of each other, with the bottom layer typically being the background and upper layers containing foreground elements.

Layer Properties:

Z-Index: The stacking order (which layer is on top)
Opacity: Transparency level (0-100%)
Blend Mode: How the layer interacts with layers below
Transform: Position, size, rotation
Effects: Blur, brightness, contrast, etc.

2.2 Canvas & Coordinate System

The Canvas

The canvas is your working area - the final image dimensions. Understanding canvas coordinates is essential for precise positioning.

Coordinate System: Digital images use a pixel-based coordinate system where (0,0) is typically the top-left corner. X increases to the right, Y increases downward.

Position Terminology:

Top-Left: (0%, 0%) or (0px, 0px)
Center: (50%, 50%)
Bottom-Right: (100%, 100%)

2.3 Resolution & Quality

Term	Definition	Typical Values
Resolution	Number of pixels (width × height)	1920×1080, 3840×2160
DPI/PPI	Dots/Pixels per inch (print quality)	72 (web), 300 (print)
Aspect Ratio	Width to height proportion	16:9, 4:3, 1:1
Bit Depth	Color information per pixel	8-bit, 16-bit, 32-bit

2.4 Color Spaces

Common Color Spaces in Digital Imaging

RGB (Red, Green, Blue): Standard for digital displays. Additive color model.
CMYK (Cyan, Magenta, Yellow, Black): Used for printing. Subtractive color model.
sRGB: Standardized RGB color space for web and general use.
Adobe RGB: Wider color gamut for professional photography.
HSL/HSV: Hue, Saturation, Lightness/Value - intuitive for color adjustments.

For web and social media, always use sRGB color space. For print, convert to CMYK before sending to press.

🖥️ 3. Tool Interface & Workflow

Learning Objectives:

Navigate the tool interface efficiently
Understand the purpose of each control element
Master the composition workflow from start to finish
Learn best practices for organizing layers

3.1 Interface Overview

The tool is divided into three main sections:

1. Control Panel (Top)

Primary action buttons for managing your composition:

Add Image Layer - Creates a new layer
Generate Prompt - Compiles all settings into a prompt
Copy Prompt - Copies to clipboard
Export Prompt - Saves as .txt file
Clear All - Resets the entire tool

2. Image Layers Section (Middle)

Each layer has its own configuration panel with:

Image description and metadata
Position and transform controls
Visual effect parameters
Masking and edge options
Remove button for deletion

3. Output Settings & Result (Bottom)

Global settings that affect the final composition:

Aspect ratio and dimensions
Resolution and quality
File format options
Additional processing flags
Generated prompt display area

3.2 Recommended Workflow

1

Plan Your Composition
Before opening the tool, sketch or visualize your final image. Know which images you'll use and their purpose (background, subject, detail, etc.).

2

Start with Background
Add your first layer - this should be your background. Set it to 100% opacity and position it to fill or fit as needed.

3

Add Main Subject
Add the primary focus of your composition. Configure its position, size, and any necessary masking.

4

Layer Additional Elements
Add any supporting images, textures, or details. Remember: each new layer goes on top of previous ones.

5

Fine-Tune Parameters
Adjust opacity, blend modes, and effects to achieve visual harmony. Pay attention to lighting consistency.

6

Configure Output Settings
Set your aspect ratio, resolution, and format based on final use (web, print, social media, etc.).

7

Generate & Review Prompt
Click "Generate Prompt" and review the output for completeness and accuracy.

8

Export & Use
Copy or export your prompt and use it with your chosen AI image composition tool.

Save your prompt file after each major composition. Use descriptive filenames like "product-beach-composite-v1.txt" for version control.

📐 4. Understanding Layers & Composition Theory

Learning Objectives:

Master the layer stacking paradigm
Apply composition rules (Rule of Thirds, Golden Ratio)
Understand depth and perspective in composition
Learn to create visual hierarchy

4.1 Layer Stacking Order

The Z-Index Concept

Layers are stacked in the order you add them:

Layer 1 (First added): Bottom - Usually background
Layer 2: Above Layer 1 - Mid-ground elements
Layer 3: Above Layer 2 - Foreground elements
Layer N (Last added): Top - Details, overlays, effects

Think of layers like sheets of glass stacked on top of each other. You look down through all the sheets to see the final composition.

4.2 Composition Principles

Rule of Thirds

Divide your canvas into a 3×3 grid. Place important elements along the lines or at intersection points.

Strong compositional points: (33%, 33%), (66%, 33%), (33%, 66%), (66%, 66%)
Creates visual balance and interest
Avoid centering everything - it's static

Golden Ratio (φ ≈ 1.618)

More sophisticated than Rule of Thirds, based on mathematical proportion found in nature.

Primary focal point: approximately 38% from edge
Secondary focal point: approximately 62% from edge
Creates naturally pleasing compositions

Visual Weight & Balance

Elements have "visual weight" based on:

Size: Larger = heavier
Color: Warm/bright colors = heavier
Contrast: High contrast = heavier
Complexity: Detailed areas = heavier

Balance heavy elements on one side with lighter elements or negative space on the other.

4.3 Depth & Perspective

Creating Depth Illusion

Make 2D compositions feel three-dimensional:

Technique	How to Apply
Size Variation	Larger objects = closer; smaller = farther
Overlap	Objects in front partially cover those behind
Blur Gradient	Sharp foreground, blurred background (depth of field)
Color Temperature	Warm foreground, cool background (atmospheric perspective)
Contrast	High contrast foreground, low contrast background

4.4 Layer Purpose Classification

The tool asks you to classify each layer's purpose. Understanding these categories is crucial:

Purpose	Description	Typical Settings
Background	The backdrop; fills entire canvas	100% opacity, Size: 100%, Position: fill
Main Subject	Primary focus of composition	High opacity (80-100%), prominent position, masking often needed
Specific Part	Supporting elements, details, overlays	Variable opacity and blend modes, strategic positioning

⚙️ 5. Technical Parameters Explained

Learning Objectives:

Understand each adjustable parameter's function
Learn appropriate value ranges for different effects
Master the interaction between multiple parameters
Apply parameters strategically for desired outcomes

5.1 Transform Parameters

Position

Determines where on the canvas the layer's reference point is placed.

Options:

Top-Left, Top-Center, Top-Right - Upper canvas positions
Center-Left, Center, Center-Right - Middle row positions
Bottom-Left, Bottom-Center, Bottom-Right - Lower canvas positions
Custom - Specify exact X, Y coordinates or percentages

Example Use Cases:

✅ Portrait Photography:

Subject at Center or Rule of Thirds position (66% from left)

✅ Product Photos:

Product at Center with symmetric background

✅ Text Overlays:

Text at Top-Center or Bottom-Center for readability

Size

Controls the scale of the layer relative to the canvas.

Range: 10% to 200%

10-30%: Small details, logos, decorative elements
40-60%: Medium subjects, balanced composition
70-100%: Large subjects, backgrounds, full coverage
110-200%: Zoom-in effect, cropped view, dramatic close-ups

Scaling up beyond 100% can cause pixelation if the original image resolution is insufficient. Always use high-resolution source images for upscaling.

Rotation

Rotates the layer around its center point.

Range: -180° to +180°

0°: No rotation (default)
±5-15°: Subtle dynamic tilt (common in collages)
90° or -90°: Portrait ↔ Landscape orientation
180°: Complete inversion

Use small rotation angles (±5-10°) to add energy and break rigid layouts. Large rotations should have compositional purpose.

5.2 Opacity & Visibility

Opacity

Controls layer transparency from completely transparent (invisible) to completely opaque.

Range: 0% to 100%

Value	Effect	Common Use
0%	Invisible	Hiding layer temporarily
10-30%	Very subtle	Watermarks, subtle textures
40-60%	Translucent	Overlays, ghost effects, blending
70-90%	Mostly opaque	Soft integration with background
100%	Fully opaque	Primary subjects, backgrounds

Alpha Channel: Opacity is achieved through the alpha channel in image processing. An alpha value of 0 means fully transparent, while 255 (or 1.0 in normalized form) means fully opaque.

5.3 Color & Light Adjustments

Brightness

Adjusts the overall lightness or darkness of the layer.

Range: -100% to +100%

Negative values: Darken the image
0%: Original brightness (default)
Positive values: Lighten the image

When combining multiple images, match brightness levels for coherent lighting. Background slightly darker than foreground creates depth.

Contrast

Controls the difference between light and dark areas.

Range: -100% to +100%

Negative values: Flatten image, reduce difference between lights/darks
0%: Original contrast (default)
Positive values: Enhance difference between lights/darks (more punchy)

Contrast Application:

✅ Low Contrast (-30 to -50):

Soft, dreamy backgrounds; vintage filter effects

✅ High Contrast (+30 to +50):

Dramatic portraits; enhancing product details; text legibility

Saturation

Controls color intensity/vividness.

Range: -100% to +100%

-100%: Grayscale (no color)
-50%: Muted, desaturated colors
0%: Original saturation (default)
+50%: Vivid, enhanced colors
+100%: Maximum color intensity (can look artificial)

5.4 Effects & Filters

Blur

Applies Gaussian blur to soften the image.

Range: 0px to 50px

Blur Amount	Effect	Use Case
0px	Sharp (no blur)	Default; primary subjects
2-5px	Subtle softening	Soft focus portraits; gentle depth of field
10-20px	Moderate blur	Background separation; de-emphasizing elements
25-50px	Strong blur	Abstract backgrounds; bokeh effect; privacy blurring

Gaussian Blur: The most common blur algorithm, named after the Gaussian distribution (bell curve). It produces natural-looking blur with smooth falloff.

🎨 6. Blend Modes: Theory & Application

Learning Objectives:

Understand the mathematical basis of blend modes
Learn when to use each blend mode type
Master creative applications of blending
Recognize blend mode categories and behaviors

6.1 What Are Blend Modes?

Definition

Blend modes are mathematical algorithms that determine how pixels in a layer combine with pixels in layers beneath it. They calculate the final color based on the source color (current layer) and destination color (layers below).

Formula: Result = BlendFunction(Source, Destination)

6.2 Blend Mode Categories

Normal Mode

Algorithm: Direct overlay with opacity control

Formula: Result = Source × Opacity + Destination × (1 - Opacity)

Characteristics:

No color interaction between layers
Simply places one image over another
Opacity is the only variable

Use when: You want straightforward layering without color effects

Darken Modes (Multiply)

Algorithm: Multiplies color values

Formula: Result = (Source × Destination) / 255

Characteristics:

Always produces darker colors (never lighter)
White (255) becomes transparent
Black (0) remains black
Mimics overlaying colored glass or filters

Use for:

Adding shadows
Texture overlays on photographs
Color grading with darker tones
Simulating traditional print methods

Practical Example:

Scenario: Adding wood texture to a photo

Setup:

Layer 1: Your photograph
Layer 2: Wood texture image
Blend Mode: Multiply
Opacity: 40-60%

Result: The wood grain appears naturally integrated, darkening the image while preserving detail.

Lighten Modes (Screen)

Algorithm: Inverted multiplication (opposite of Multiply)

Formula: Result = 255 - ((255 - Source) × (255 - Destination) / 255)

Characteristics:

Always produces lighter colors (never darker)
Black (0) becomes transparent
White (255) remains white
Mimics projecting light through layers

Use for:

Adding light effects (lens flares, glows)
Brightening specific areas
Creating luminous overlays
Simulating fog or mist

Practical Example:

Scenario: Adding sun flare to landscape

Setup:

Layer 1: Landscape photo
Layer 2: Sun flare image (bright on black background)
Blend Mode: Screen
Opacity: 60-80%

Result: The bright parts of the flare add to the scene while the black background becomes invisible.

Contrast Modes (Overlay)

Algorithm: Combination of Multiply and Screen based on destination brightness

Formula:

If Destination < 128: Result = 2 × Source × Destination / 255
If Destination ≥ 128: Result = 255 - 2 × (255 - Source) × (255 - Destination) / 255
                    

Characteristics:

Darkens dark areas (Multiply)
Lightens light areas (Screen)
Increases overall contrast
50% gray has no effect

Use for:

General purpose blending
Adding textures while preserving contrast
Color grading overlays
Enhancing depth

Soft Light

Algorithm: Gentler version of Overlay

Characteristics:

Similar to Overlay but more subtle
Mimics soft diffused lighting
Preserves more detail than Overlay

Use for:

Subtle color corrections
Gentle texture overlays
Portrait retouching
Creating mood without over-processing

Hard Light

Algorithm: More intense version of Overlay

Characteristics:

Stronger effect than Overlay or Soft Light
Simulates harsh lighting conditions
Can create dramatic contrast

Use for:

Dramatic lighting effects
High-contrast artistic looks
Strong texture applications
Creating impact

6.3 Blend Mode Selection Guide

Goal	Recommended Blend Mode	Opacity Range
Basic layering	Normal	80-100%
Add texture	Multiply or Overlay	30-60%
Add light/glow	Screen	40-70%
Color grading	Soft Light or Overlay	20-50%
Dramatic effect	Hard Light	50-80%
Subtle integration	Soft Light	20-40%

Blend modes affect color and tone relationships. If your composition looks "off" after applying a blend mode, check if all layers have consistent white balance and color temperature.

✂️ 7. Masking & Edge Control Techniques

Learning Objectives:

Understand different masking techniques
Master edge feathering for natural blending
Learn background removal strategies
Apply selective visibility controls

7.1 What is Masking?

Definition

Masking is a non-destructive technique that controls which parts of a layer are visible and which are hidden, without permanently deleting pixels.

Mask Types:

Binary Mask: Pixels are either fully visible or fully hidden
Gradient Mask: Smooth transition from visible to hidden
Alpha Mask: Uses grayscale values to control transparency

7.2 Background Removal

Subject Isolation

The most common use of masking is removing backgrounds to isolate subjects.

Mask Types in the Tool:

None: No masking (full image visible)
Remove Background: Automatically isolate the main subject
Keep Center, Fade Edges: Vignette effect
Custom Shape: Geometric or custom boundary

Typical Workflow:

Portrait with New Background:

Layer 1: New background scene (landscape, studio, etc.)
Layer 2: Portrait photo with "Remove Background" mask
Result: Subject cleanly placed in new environment

7.3 Edge Feathering

Understanding Feathering

Edge feathering creates a gradual transition at the edges of a layer, blending it smoothly with underlying layers.

Range: 0px to 200px

Feather Amount	Effect	Best For
0px	Hard edges	Geometric shapes, text, clean cuts
10-20px	Slight softening	Natural photos with good isolation
30-50px	Noticeable blend	Portraits, organic subjects
75-100px	Soft integration	Dreamy effects, subtle overlays
150-200px	Strong fade	Vignettes, transitional elements

When compositing objects with fine details (hair, fur, foliage), use moderate feathering (15-30px) to avoid the "cut-out" look while preserving detail.

7.4 Advanced Masking Techniques

Gradient Masks for Depth

Create realistic depth of field by varying opacity across the image:

Foreground: Sharp, high opacity
Mid-ground: Medium opacity
Background: Lower opacity or more blur

Edge Refinement Strategies

For challenging edges (like hair or fur):

Start with subject isolation mask
Add edge feathering (20-40px)
Slightly reduce opacity (95-98%) for natural integration
Match lighting direction and intensity with background

7.5 Shadow Effects

Adding Realistic Shadows

Shadows ground objects in their environment. The tool includes shadow options:

Parameters:

Shadow Offset: How far the shadow is from the object
Shadow Blur: Softness of the shadow
Shadow Color: Usually black or dark version of background color
Shadow Opacity: Strength of the shadow

Shadow Guidelines:

Direct sunlight: Hard shadows, low blur (5-10px)
Overcast/diffused: Soft shadows, high blur (20-40px)
Indoor artificial: Medium shadows, moderate blur (10-20px)

🎨 8. Color Theory & Image Adjustments

Learning Objectives:

Apply color harmony principles to compositions
Understand color temperature and mood
Master color correction for consistent compositions
Learn about white balance and color casts

8.1 Color Harmony in Composition

Complementary Colors

Colors opposite on the color wheel create high contrast and visual interest:

Blue ↔ Orange
Red ↔ Green (use carefully - can look like Christmas)
Purple ↔ Yellow

Use for: Creating vibrant, energetic compositions

Analogous Colors

Colors next to each other on the color wheel create harmony:

Blue → Blue-green → Green
Red → Red-orange → Orange

Use for: Calm, cohesive, naturally pleasing compositions

8.2 Color Temperature

Understanding Temperature

Color temperature describes the warmth or coolness of an image:

Temperature	Colors	Mood/Association
Warm	Red, Orange, Yellow	Energy, passion, comfort, warmth
Cool	Blue, Cyan, Purple	Calm, professional, sadness, distance
Neutral	Green, Gray, Beige	Balance, nature, subtlety

When compositing, all layers should have consistent color temperature. A warm subject on a cool background (or vice versa) looks unnatural unless you're creating a specific artistic effect.

8.3 Color Correction Workflow

Matching Color Between Layers

To create cohesive compositions, adjust color properties:

White Balance: Ensure all layers have the same color temperature
Saturation: Match color intensity across layers
Hue Shift: If needed, shift hues to match (e.g., make all layers slightly warmer)
Brightness: Adjust so lighting looks consistent
Contrast: Match contrast levels for uniform processing

8.4 Saturation Strategy

When to Adjust Saturation

Increase Saturation (+10 to +40%):

Dull or flat-looking images
Product photography (make colors pop)
Social media content (draws attention)
Travel/landscape photos

Decrease Saturation (-10 to -40%):

Over-saturated images
Matching different image sources
Creating muted, sophisticated looks
Portrait backgrounds (to emphasize subject)

Remove Saturation (-100%, Grayscale):

Black and white artistic effect
Reducing background distraction
Vintage/classic look

Over-saturation (>+50%) can make images look artificial and hurt color fidelity. Use moderation unless seeking a specific hyper-colorful aesthetic.

💾 9. Output Optimization & Format Selection

Learning Objectives:

Select appropriate aspect ratios for different platforms
Understand resolution requirements
Choose optimal file formats
Balance quality versus file size

9.1 Aspect Ratio Selection

Common Aspect Ratios & Their Uses

Aspect Ratio	Dimensions Example	Best For
16:9	1920×1080, 3840×2160	YouTube videos, widescreen displays, presentations
4:3	1024×768, 2048×1536	Traditional photography, older displays
1:1	1080×1080, 2048×2048	Instagram posts, profile pictures, square prints
9:16	1080×1920	Instagram/TikTok Stories, mobile vertical video
21:9	2560×1080, 3440×1440	Ultrawide monitors, cinematic content
3:2	3000×2000	DSLR photography standard, print

9.2 Resolution Guidelines

Resolution by Use Case

Use Case	Minimum Resolution	Recommended Resolution
Website Images	1280×720 (720p)	1920×1080 (1080p)
Social Media	1080×1080	1200×1200 to 2048×2048
Presentations	1920×1080	2560×1440 (2K)
Digital Displays/TV	1920×1080	3840×2160 (4K)
Print (8×10")	2400×3000 @ 300 DPI	3000×3750 @ 300 DPI
Print (Large Poster)	150 DPI	200-300 DPI

DPI vs PPI: DPI (Dots Per Inch) refers to printer output, while PPI (Pixels Per Inch) refers to digital displays. For digital work, think in pixels. For print, calculate: Width_inches × DPI = Width_pixels

9.3 File Format Decision Matrix

Format Comparison

Format	Compression	Transparency	Best For
JPG/JPEG	Lossy	No	Photographs, web, small file size, social media
PNG	Lossless	Yes (Alpha)	Graphics, logos, images needing transparency, web
TIFF	None or lossless	Yes	Print, archival, professional photography
WebP	Lossy or lossless	Yes	Modern web, Google platforms, smaller than PNG/JPG

Format Selection Examples:

✅ Instagram Post:

JPG, 1080×1080, quality 85-95%

✅ Website Hero Image:

WebP (with JPG fallback), 1920×1080, quality 80%

✅ Logo on Website:

PNG with transparency, appropriate size (2-4× display size for retina)

✅ Print Magazine:

TIFF, 300 DPI, CMYK color space

9.4 Quality vs. File Size

Optimization Strategies

For Web (Priority: Fast Loading):

Use JPG quality 75-85% for photographs
Use PNG-8 for simple graphics (256 colors)
Consider WebP for modern browsers
Resize to exact display dimensions (no larger)

For Social Media (Priority: Quick Upload, Decent Quality):

Follow platform recommendations (Instagram: 1080×1080)
JPG quality 85-95%
sRGB color space

For Print (Priority: Maximum Quality):

300 DPI minimum
TIFF or high-quality JPG (95-100%)
CMYK color space
Include bleed area (extra margin)

For Portfolio/Archive (Priority: Longevity):

PNG or TIFF
High resolution
No compression or lossless

9.5 Advanced Output Settings

Additional Options Explained

HDR Output:

High Dynamic Range - greater range of brightness
Use for: Modern displays, HDR-compatible content
Requires: HDR source images or tone mapping

sRGB Color Profile:

Standard color space for web and general viewing
Use for: Almost everything digital
Ensures consistent color across different displays

Preserve Details:

Sharpening and detail enhancement during resize
Use for: Downscaling images, preventing softness
Can add slight grain at high settings

Anti-Aliasing:

Smooths jagged edges on diagonal lines and curves
Use for: Text, graphics, geometric shapes
Usually enabled by default

🎓 10. Practical Exercises & Projects

Learning Objectives:

Apply learned concepts to real projects
Build practical prompt engineering skills
Develop a personal workflow
Create portfolio-worthy compositions

Exercise 1: Simple Background Replacement

Beginner

Objective: Replace the background of a portrait with a new scene.

Requirements:

1 portrait photo (person against simple background)
1 background image (landscape, studio, etc.)

Steps:

Add background image as Layer 1
- Position: Center, Size: 100%
- Apply slight blur (5-10px) for depth
Add portrait as Layer 2
- Description: Describe the person and their pose
- Purpose: Main subject
- Mask Type: Remove background
- Edge Feathering: 20-30px
Match colors
- Adjust brightness and saturation to match background
- Ensure color temperature is consistent
Add shadow (optional but recommended)
Set output: 4:3, High resolution, PNG

Success Criteria:

Clean edge separation between subject and background
Natural-looking integration (no "cut-out" appearance)
Consistent lighting direction

Exercise 2: Instagram Square Collage

Beginner

Objective: Create a 3-photo collage for Instagram.

Requirements:

3 related photos (vacation, portfolio samples, event photos)
1 background (solid color or subtle texture)

Steps:

Layer 1: Background (white, cream, or subtle pattern)
Layer 2: Photo 1 (left side)
- Position: Custom - 25% from left, centered vertically
- Size: 40%
- Rotation: -5° for dynamic feel
- Shadow: Enabled
Layer 3: Photo 2 (center)
- Position: Center
- Size: 45%
- No rotation (or minimal)
- Shadow: Enabled
Layer 4: Photo 3 (right side)
- Position: Custom - 75% from left, centered vertically
- Size: 40%
- Rotation: +5°
- Shadow: Enabled
Output: 1:1 (square), 1080×1080, JPG

Exercise 3: Product Photography Composite

Intermediate

Objective: Place a product in a lifestyle scene.

Requirements:

1 product photo (on white/transparent background)
1 lifestyle scene (kitchen counter, desk, outdoor table)
Optional: 1 texture overlay

Steps:

Layer 1: Lifestyle scene background
Layer 2: Product
- Remove background
- Position strategically using Rule of Thirds
- Size: 30-50% depending on composition
- Edge feathering: 15-25px
- Shadow: Yes - match lighting of scene
Layer 3 (optional): Subtle texture overlay
- Blend mode: Multiply or Soft Light
- Opacity: 15-30%
Color corrections
- Match product white balance to scene
- Adjust brightness for lighting consistency
Output: 16:9 for web, High resolution

Challenge: Make the lighting look 100% natural.

Exercise 4: Double Exposure Effect

Intermediate

Objective: Create an artistic double exposure.

Requirements:

1 portrait (profile or silhouette works best)
1 texture/landscape (nature, cityscape, abstract)

Steps:

Layer 1: Portrait
- High contrast (+30-50%)
- Potentially desaturate slightly
Layer 2: Texture/landscape
- Blend mode: Screen or Overlay
- Opacity: 50-80%
- Position to align interesting elements with face
Fine-tune
- Adjust saturation for artistic effect
- May need to brighten or darken individual layers
Output: 4:3 or 1:1, High resolution, PNG

Exercise 5: Multi-Layer Complex Composition

Advanced

Objective: Create a poster-quality composition with 5+ layers.

Requirements:

1 background scene
2-3 main subjects (people, products, or elements)
1-2 texture/overlay layers
1 text/graphic layer (represented by description)

Steps:

Plan your composition on paper first
Layer 1: Background with atmospheric blur
Layer 2-4: Main subjects
- Vary sizes for depth perception
- Use foreground/mid-ground/background positioning
- Apply different blur levels
Layer 5: Color grading overlay
- Solid color with Soft Light or Overlay blend
- Low opacity (15-30%)
Layer 6: Texture or light effect
- Appropriate blend mode
- Strategic opacity
Layer 7: Text/graphic space (describe placement)
Output: Custom dimensions, Ultra resolution, PNG or TIFF

Evaluation Criteria:

Visual hierarchy (clear focus)
Color harmony
Lighting consistency
Professional finish quality
Creative use of blend modes

After completing each exercise, save your prompt file and document what worked well and what you'd change. Building a personal prompt library accelerates future work.

🚀 11. Advanced Techniques

Learning Objectives:

Master advanced composition strategies
Learn prompt optimization techniques
Understand iterative refinement workflow
Develop professional-level skills

11.1 Advanced Layer Strategies

Adjustment Layers Concept

While this tool doesn't have traditional adjustment layers, you can simulate them:

Add a solid color layer with Overlay blend mode for color grading
Add a gradient layer with Soft Light for vignetting
Use texture overlays with Multiply for film grain

Layer Groups & Organization

When working with many layers, mentally group them:

Base Group: Background and environment (Layers 1-2)
Subject Group: Main focus elements (Layers 3-5)
Effects Group: Overlays, textures, color grading (Layers 6-8)
Detail Group: Fine details, highlights, shadows (Layers 9+)

11.2 Prompt Optimization

Writing Better Descriptions

The quality of your layer descriptions directly affects results:

Description Quality Comparison:

❌ Poor Description:

"A person"

⚠️ Okay Description:

"Woman in red dress"

✅ Good Description:

"Professional portrait of woman, age 30, wearing red cocktail dress, neutral studio lighting"

✅✅ Excellent Description:

"Professional portrait: Caucasian woman, early 30s, long brunette hair, wearing red cocktail dress, standing pose, soft studio lighting from camera-left at 45°, neutral gray background, shot with 85mm lens creating shallow depth of field"

Key Elements to Include:

Subject type and details
Colors and materials
Lighting characteristics
Perspective or angle
Style or mood
Technical details if relevant

11.3 Lighting Coherence

Matching Light Direction

For realistic compositions, light must be consistent:

Identify light direction in your background (where are highlights/shadows?)
Ensure all subjects have lighting from the same direction
Match light intensity (brightness) across layers
Match light color temperature (warm/cool)
Add shadows that match the light source

Professional Tip: When compositing outdoors, sun position is key. Subjects should all have sun highlights on the same side. Indoor scenes should have consistent window or lamp direction.

11.4 Iterative Refinement

The Professional Workflow

Draft Pass:
- Rough layout with basic positioning
- Generate prompt and test
- Evaluate overall composition
Refinement Pass:
- Adjust problematic areas
- Fine-tune opacity and blend modes
- Add edge feathering
- Regenerate and test
Detail Pass:
- Perfect color matching
- Add shadows and highlights
- Apply final effects
Polish Pass:
- Overall color grading
- Sharpening/detail enhancement
- Final quality check

11.5 Common Problems & Solutions

Problem	Cause	Solution
Subjects look "cut out"	Hard edges, no feathering	Add 20-40px edge feathering, reduce opacity slightly (98%)
Floating objects	No shadows	Add shadows matching light direction and intensity
Color mismatch	Different white balance	Adjust saturation, brightness, potentially add color overlay
Inconsistent lighting	Sources lit from different directions	Adjust brightness per layer, add directional highlights
Scale looks wrong	Size proportions unrealistic	Research real-world proportions, adjust sizes accordingly
Flat/no depth	Everything same sharpness/contrast	Apply blur gradient, vary contrast, adjust saturation by depth

📝 12. Self-Assessment & Quiz

Learning Objectives:

Evaluate your understanding of key concepts
Identify areas needing more study
Reinforce learning through application

Knowledge Check Questions

Question 1: Layer Order

You're creating a composition with a landscape background, a person, and a text overlay. What's the correct layer order from bottom to top?

A) Text, Person, Landscape
B) Person, Landscape, Text
C) Landscape, Person, Text
D) It doesn't matter

Correct Answer: C - Background first, then subject, then overlay elements on top.

Question 2: Blend Modes

You want to add a wood texture to a photo but keep the photo details visible while darkening the overall tone. Which blend mode should you use?

A) Normal
B) Screen
C) Multiply
D) Overlay

Correct Answer: C - Multiply darkens while preserving detail and making white areas transparent.

Question 3: Opacity

What opacity range is most appropriate for a subtle watermark?

A) 10-30%
B) 50-70%
C) 80-90%
D) 100%

Correct Answer: A - Watermarks should be visible but not distracting.

Question 4: Resolution

You're creating an image for a printed 8×10" photo. What minimum DPI should you use?

A) 72 DPI
B) 150 DPI
C) 300 DPI
D) 600 DPI

Correct Answer: C - 300 DPI is the professional standard for photo printing.

Question 5: Edge Feathering

You're compositing a portrait onto a new background. The edges look too sharp and artificial. What's the best solution?

A) Reduce opacity to 50%
B) Add 20-40px edge feathering
C) Change blend mode to Multiply
D) Apply maximum blur

Correct Answer: B - Edge feathering creates natural transitions without affecting the overall image.

Question 6: File Formats

Which format should you use for a logo that needs a transparent background for web use?

A) JPG
B) PNG
C) TIFF
D) WebP

Correct Answer: B - PNG supports transparency and is widely supported on the web.

Question 7: Color Temperature

Your subject was photographed under warm indoor lighting, but your background is a cool outdoor scene. What should you do?

A) Leave both as-is for contrast
B) Make the background warmer or the subject cooler
C) Convert everything to black and white
D) Use Screen blend mode

Correct Answer: B - Matching color temperature is essential for realistic compositions.

Question 8: Composition

According to the Rule of Thirds, where should you position your main subject for the strongest composition?

A) Dead center (50%, 50%)
B) At intersection points (~33% or 66% from edges)
C) In a corner
D) Randomly positioned

Correct Answer: B - Rule of Thirds intersection points create dynamic, balanced compositions.

Practical Assessment

Final Project: Portfolio Piece

Final Assessment

Objective: Create a complete, professional-quality composition demonstrating all learned skills.

Requirements:

Minimum 4 layers, maximum 8
At least one masked subject
Use of at least 2 different blend modes
Consistent lighting and color temperature
Professional output settings for specific use case
Written explanation (300 words) of your decisions

Grading Criteria:

Technical Execution (40%): Proper use of parameters, clean masking, appropriate settings
Compositional Quality (30%): Visual hierarchy, balance, Rule of Thirds, depth
Color & Lighting (20%): Consistency, mood, temperature matching
Creativity & Originality (10%): Unique concept, artistic vision

Submission:

Exported prompt file (.txt)
Final rendered image (if using AI tool)
Written explanation document

Review completed exercises regularly. Mastery comes from repetition and refinement. Keep building your prompt library!

🎓 Conclusion & Next Steps

Congratulations on completing this educational manual on prompt engineering for digital image composition! You've learned the technical fundamentals, compositional theory, and practical skills needed to create professional-quality composition prompts.

Key Takeaways

Prompt engineering is about precise, detailed communication with AI systems
Layer-based thinking is fundamental to digital composition
Technical parameters (opacity, blend modes, positioning) must work together
Color and lighting consistency make or break realism
Edge control (feathering, masking) prevents the "cut-out" look
Output optimization depends on final use case

Continuing Your Education

Practice Projects:

Complete all exercises in this manual
Recreate professional work you admire
Accept real-world projects (even small ones)
Challenge yourself with increasingly complex compositions

Further Learning Resources:

Study professional photography and graphic design principles
Learn color theory in depth
Explore traditional art composition rules
Study how light works in photography
Practice with professional editing software (Photoshop, GIMP)

Building Your Portfolio:

Document your process and decisions
Save prompts alongside final images
Note what worked and what didn't
Create case studies of successful projects
Share your work and get feedback

Remember: This tool creates prompts, not images. You'll need AI composition tools (like Claude, ChatGPT, or specialized software) to execute your prompts. The quality of your prompt directly determines the quality of your result.

Professional Development Path

Beginner Phase:
- Master basic 2-3 layer compositions
- Learn to match colors and lighting
- Understand all parameters
Intermediate Phase:
- Create complex multi-layer compositions
- Use advanced blend modes creatively
- Develop your own style
Advanced Phase:
- Work on client projects
- Teach others
- Push creative boundaries
- Contribute to the community

Good luck on your creative journey!
Keep learning, keep creating, keep improving.

📸 Photo Composition Prompt Generator

📋 Table of Contents

🎯 1. Introduction to Prompt Engineering for Image Composition

Learning Objectives:

1.1 What is Prompt Engineering?

Definition

1.2 Image Composition vs. Image Generation

1.3 Real-World Applications

1.4 Prerequisites

📚 2. Fundamental Concepts

Learning Objectives:

2.1 The Layer System

Understanding Layers

Layer Properties:

2.2 Canvas & Coordinate System

The Canvas

Position Terminology:

2.3 Resolution & Quality

2.4 Color Spaces

Common Color Spaces in Digital Imaging

🖥️ 3. Tool Interface & Workflow

Learning Objectives:

3.1 Interface Overview

1. Control Panel (Top)

2. Image Layers Section (Middle)

3. Output Settings & Result (Bottom)

3.2 Recommended Workflow

📐 4. Understanding Layers & Composition Theory

Learning Objectives:

4.1 Layer Stacking Order

The Z-Index Concept

4.2 Composition Principles

Rule of Thirds

Golden Ratio (φ ≈ 1.618)

Visual Weight & Balance

4.3 Depth & Perspective

Creating Depth Illusion

4.4 Layer Purpose Classification

⚙️ 5. Technical Parameters Explained

Learning Objectives:

5.1 Transform Parameters

Position

Example Use Cases:

Size

Rotation

5.2 Opacity & Visibility

Opacity

5.3 Color & Light Adjustments

Brightness

Contrast

Contrast Application:

Saturation

5.4 Effects & Filters

Blur

🎨 6. Blend Modes: Theory & Application

Learning Objectives:

6.1 What Are Blend Modes?

Definition

6.2 Blend Mode Categories

Normal Mode

Darken Modes (Multiply)

Practical Example:

Lighten Modes (Screen)

Practical Example:

Contrast Modes (Overlay)

Soft Light

Hard Light

6.3 Blend Mode Selection Guide

✂️ 7. Masking & Edge Control Techniques

Learning Objectives:

7.1 What is Masking?

Definition

7.2 Background Removal

Subject Isolation

Typical Workflow:

7.3 Edge Feathering

Understanding Feathering

7.4 Advanced Masking Techniques

Gradient Masks for Depth

Edge Refinement Strategies