# Professional Prompt Design Guide

The key to generating high-quality images is crafting artist-level prompts. Below are the core elements of professional prompts:

## Prompt Structure Formula

```
[Subject description] + [Scene/environment] + [Lighting/mood] + [Composition/angle] + [Art style] + [Quality parameters]
```

## 1. Lighting Design

| Lighting Type | Keywords | Effect Description |
|--------------|----------|-------------------|
| Natural light | `golden hour light`, `soft daylight`, `overcast diffused light` | Soft, realistic natural quality |
| Artificial light | `studio lighting`, `ring light`, `neon glow` | Controllable, precise lighting effects |
| Dramatic light | `chiaroscuro`, `Rembrandt lighting`, `rim light`, `backlit silhouette` | Strong contrast, emotional tension |
| Ambient light | `volumetric lighting`, `god rays`, `hazy atmosphere` | Spatial depth, mystery |
| Color light | `warm tones`, `cool blue cast`, `cinematic color grading` | Mood and tone control |

**Example**:
```
Soft golden hour light streams through the window at an angle, creating a warm Tyndall effect, Rembrandt-style triangle lighting on the subject's face, background in soft shadows
```

## 2. Scene Construction

| Scene Layer | Description Points |
|------------|-------------------|
| Foreground | Adds depth of field, guides the eye (e.g., blurred flowers, props) |
| Midground | Where the subject is located, richest in detail |
| Background | Environmental context, mood setting (e.g., architecture, sky, distant mountains) |
| Environmental details | Materials, textures, weather, time of day, season |

**Example**:
```
Foreground of blurred cherry blossom petals falling, midground of a woman in kimono standing on a stone bridge, background of a misty Kyoto ancient temple, distant mountains barely visible, light rain, wet ground with reflections, water vapor in the air
```

## 3. Character Description

| Dimension | Description Points |
|----------|-------------------|
| Appearance | Age, skin tone, hairstyle/color, facial features |
| Clothing | Style, material, color, accessories, texture details |
| Posture/Action | Standing/sitting pose, hand gestures, head angle, center of gravity |
| Expression | Eye direction, emotional state, micro-expressions |
| Environmental interaction | Touching, looking, walking, and other action relationships |

**Example**:
```
A 25-year-old East Asian woman with long black hair, slightly wavy over her shoulders, wearing a cream-colored linen dress, simple gold earrings, standing sideways, left hand gently touching the curtain, gazing out the window, looking thoughtful with a faint smile
```

## 4. Composition Principles

| Composition Type | Keywords | Best For |
|-----------------|----------|----------|
| Rule of thirds | `rule of thirds`, `off-center subject` | Portraits, landscapes, balanced and stable |
| Center symmetry | `centered composition`, `symmetrical` | Architecture, portraits, formal and dignified |
| Leading lines | `leading lines`, `diagonal composition` | Streets, corridors, depth perception |
| Frame composition | `framed composition`, `natural frame` | Doorways, archways, focusing on subject |
| Negative space | `negative space`, `minimalist composition` | Minimalist style, artistic expression |

**Angle Keywords**:
- `eye level` - Eye-level, friendly and natural
- `low angle` - Looking up, grand and imposing
- `high angle / bird's eye view` - Looking down, overview
- `dutch angle` - Tilted, uneasy and dynamic
- `close-up` - Close-up, detail and emotion
- `wide shot` - Full view, environmental context

## 5. Art Style Reference

| Style Category | Example Keywords |
|---------------|-----------------|
| Photography | `photorealistic`, `35mm film`, `DSLR`, `portrait photography`, `street photography` |
| Painting | `oil painting`, `watercolor`, `digital art`, `concept art`, `illustration` |
| Art movements | `impressionism`, `art nouveau`, `baroque`, `minimalism`, `surrealism` |
| Artist reference | `in the style of Studio Ghibli`, `Makoto Shinkai style`, `Greg Rutkowski style` |
| Rendering | `3D render`, `Unreal Engine`, `octane render`, `ray tracing` |

## 6. Quality Parameters

**Positive quality keywords**:
```
high resolution, 8K, ultra detailed, sharp focus, professional, masterpiece, best quality, intricate details, aesthetic
```

**Negative prompt template** (for negative_prompt):
```
low quality, blurry, pixelated, oversaturated, deformed hands, extra fingers, distorted face, uncanny valley, text, watermark, logo, signature, cropped, out of frame, worst quality
```

## Complete Prompt Examples

**Example 1: Cinematic Portrait**
```
A 30-year-old Asian male detective standing on a rainy night Tokyo street, wearing a dark gray trench coat, holding a black umbrella, neon red and blue lights reflecting on his face, raindrops dripping along the umbrella edge, puddles on the ground reflecting brilliant city lights, Rembrandt lighting, volumetric fog, cinematic composition, 35mm anamorphic lens, film grain, moody atmosphere, high detail, photorealistic, 8K
```

**Example 2: Artistic Illustration**
```
An ancient library floating among the clouds, massive stained glass windows casting colorful light, countless books floating freely in the air, a white-haired elder sitting in a central armchair reading, surrounded by glowing magical runes, digital painting, fantasy art, Studio Ghibli inspired, warm golden light, intricate details, masterpiece, 4K, artstation trending
```