# GPT Image Hub prompt

## Comparaison de Spécimen de Papillon à Iridescence Sélective
- URL: https://www.gptimagehub.com/fr/library/mounted-butterfly-specimen-selective-iridescence-comparison
- Generator URL: https://www.gptimagehub.com/fr/generate?promptId=oss-ym-mm-9637
- Markdown URL: https://www.gptimagehub.com/api/agent/markdown?path=%2Ffr%2Flibrary%2Fmounted-butterfly-specimen-selective-iridescence-comparison
- Category: Affiche et illustration
- Model: nanobanana2
- Aspect ratio: 4:3
- Style: illustration
- Tags: papillon, entomologie, spécimen, macro, illustration-scientifique, irisé
- Updated: 2026-10-27T22:34:23.098Z
- Created: 2026-10-27T22:34:23.098Z

Génère une comparaison scientifique d'un papillon montrant reflets irisés d'un côté et texture mate de l'autre. Modifiez l'espèce et la couleur entre crochets.

### Full prompt
```text
Scientific specimen illustration comparing the dorsal and ventral sides of a mounted male [Atrophaneura alcinous] spring form butterfly against a clean white background. A split comparison displays the left wing with vibrant iridescent structural color and selective shimmering highlights, while the right wing displays a completely non-reflective, flat [matte brown] texture without any gloss. Macro entomology photography, sharp focus on wing scales and fine venation, balanced studio lighting.
```