# GPT Image Hub prompt

## Esquisse de Portrait Académique au Fusain et à l'Encre
- URL: https://www.gptimagehub.com/fr/library/academic-hand-drawn-charcoal-and-ink-portrait-sketch
- Generator URL: https://www.gptimagehub.com/fr/generate?promptId=oss-ym-mm-29970
- Markdown URL: https://www.gptimagehub.com/api/agent/markdown?path=%2Ffr%2Flibrary%2Facademic-hand-drawn-charcoal-and-ink-portrait-sketch
- Category: Affiche et illustration
- Model: nanobanana
- Aspect ratio: 9:16
- Style: painterly
- Tags: esquisse, fusain, lavis-encre, portrait, graphite, art-academique, papier-kraft
- Updated: 2026-10-26T18:57:28.098Z
- Created: 2026-10-26T18:57:28.098Z

Produit un portrait artistique au fusain, lavis d'encre et graphite sur papier texturé. Modifiez la teinte du papier et l'accent de couleur pour adapter l'ambiance.

### Full prompt
```text
Traditional hand-drawn portrait sketch technique executed on [aged warm off-white / cream beige kraft paper] with subtle visible paper fiber grain texture across the surface. Strict monochrome palette with [the clothes are given a soft dark green touch]: pure jet black, full rich range of soft gray tones, and natural cream paper color used as the brightest highlight value without pure white.

Line and medium technique:
- Balanced combination of smooth graphite pencil, soft smudged charcoal, and fluid black ink
- Hair rendered with dynamic, long, flowing directional brush and pencil strokes, loose stray wispy lines extending freely outside the form, varied line weights from razor-thin strands to bold dark masses
- Facial features drawn with refined, subtle contour lines that disappear and reappear naturally
- Clothing and lower areas rendered with bold, rough, angular, broken brush strokes with visible dry-brush texture dissolving into the paper
- Subtle construction sketch lines visible in lighter areas

Shading and washes:
- Broad, translucent, layered black ink washes and watered-down charcoal with soft bleeding edges in shadow areas
- Directional hatching and cross-hatching following three-dimensional form curvature
- Smooth blended charcoal gradients with seamless transitions on facial skin

Completion gradient:
- Central facial area is highly refined and realistically rendered
- Radiating outward and downward, the sketch gradually becomes looser, faster, rougher, and more abstract, dissolving naturally into bare paper with no hard border
- Expressive, confident, painterly fine-art academic sketchbook aesthetic
```