# Great Barrier Reef (Underwater)

## Scene Characterisation

| Property | Value |
|----------|-------|
| Domain | SEA |
| Description | Coral reef underwater scene. Tropical fish, coral, caustics, color absorption with depth.... |

## Key Tests
Underwater rendering, coral materials, fish animation, caustics, color absorption (red drops first)

## Brain Config
```bash
python -m brain \
    --reference benchmark/references/sea/great-barrier-reef/pexels-3369102-coral-reef.jpg \
    --domain SEA \
    --llm claude --tier opus \
    --max-iterations 20
```

## Licensing
- **Category**: stock-free
- **License**: Pexels License (free for all purposes, no attribution required)
- **Source**: https://www.pexels.com/photo/3369102/
- **Photo ID**: 3369102
- **Attribution Required**: No