Bản phác thảo bằng bút chì và mực giàu chi tiết của Gemini Nano Banana Pro

Gemini Nano Banana Pro Prompt: { "prompt": "Use the uploaded image as the primary reference for composition, proportions, pose, objects, and overall layout. Preserve the original identity and facial features accurately. Convert the image into a refined pencil and ink sketch illustration. Use clean hand-drawn line work, controlled cross-hatching, and soft shading to define form and depth. Keep facial features, eyes, and hands sharp and expressive while allowing background details to remain minimal and lightly sketched. Overall look should feel like a professional hand-drawn illustration—elegant, timeless, and artistic (not cartoon).", "negative_prompt": "identity change, face mismatch, cartoon, anime, messy scribbles, heavy black fills, low quality, blur, noise, distorted anatomy, extra limbs, text, watermark, logo", "style": "pencil and ink sketch illustration", "mood": "classic, artistic, calm", "lighting": "illustrative light shading", "texture": "paper grain, pencil strokes", "render_quality": "ultra high resolution, hand-drawn quality", "reference_strength": 0.9 }