Caricatura_pintura_prompt black nanquim line drawing

Prompt — Black Ink (Nanquim) Line Drawing on Graph Paper (Nano Banana Structured Prompt) Scene Type: Transform the uploaded reference photo into a hand-drawn black ink (nanquim) illustration on graph paper, preserving every real facial feature and proportion from the image. 4:5 vertical layout — notebook sketch style. 🧍‍♂️ Subject Description (from Reference Photo): Use the uploaded image as the complete 100% reference for the person’s face, pose, and clothing. Do not alter facial structure, proportions, or expression. Maintain: Same facial shape and skin proportions, translated as ink contours. Same hairstyle and clothing folds, simplified into fine cross-hatched lines and ink textures. The person should appear naturally drawn, as if sketched manually by an artist using black technical pen ink. The drawing should preserve the identity of the person while simplifying lighting and textures into pure black linework. 🎨 Artistic Style & Technique: Medium: Nanquim (black ink) pen on graph paper Color palette: pure black ink only (#000000) — no color, no shading gradient. Style: manual cross-hatching, stippling, and fine line drawing. Linework: precise, thin, slightly imperfect, showing hand-drawn variation. Shadows and depth represented by dense line clusters and ink stipples. No color fill, only black ink strokes and outlines. Texture: matte ink absorption, slightly uneven pen pressure visible. Imperfections: minor ink bleeding and micro smudges for authenticity. 📄 Paper Base: Surface: graph paper (paper with small light-blue grid lines). Grid: uniform square grid lines, light cyan tone (#A7C7E7). Paper color: natural off-white (#F9F9F4), visible grain. Edge: full page visible with soft paper shadow. Orientation: vertical 4:5 ratio, notebook-style composition. The drawing should look like a scanned or photographed sheet from an artist’s notebook — crisp ink detail on a clean, physical surface. 💡 Lighting Simulation (for Real Paper Look): Simulate diffuse overhead lighting, like an ambient daylight photo of a drawing. Key Light: 90° top-down, neutral white (5500K). Fill Light: soft side reflection for light paper shading. Shadow: minimal, gentle falloff below paper edges. Goal: flat, evenly illuminated paper texture — natural, not digital. 🎥 Camera & Lens Parameters: Lens: 50mm macro (for flat, distortion-free reproduction) Aperture: f/4.0 (full sharpness across paper) ISO: 100 Shutter Speed: 1/125 Color Temperature: 5500K (neutral daylight) Framing: centered, vertical orientation, full page visible. Focus Plane: on paper surface. Resolution: 8K for maximum ink and grid clarity. ⚙️ Material & Surface Details: Ink Material: matte, dense black pigment — slightly absorbed into paper fibers. Paper Surface: fine texture visible under lighting; clean edges with faint shadow. No gloss, no reflections. Ink edges: slightly irregular and organic — handmade feel. Grid Lines: subtle but visible beneath ink drawing. 🧠 Rendering Parameters (Technical Control): Realism Strength: 1.0 Guidance Scale: 7.5 Face Fidelity (SSIM): ≥ 0.95 (identical facial structure to photo) Prompt Weighting: (face:1.3), (ink detail:1.0), (background:0.8) Detail Enhancement: Medium (avoid over-sharpening) Lighting Model: PBR matte paper with ink absorption Seed: optional for consistent re-renders 🪞 Composition: Subject Placement: centered on the paper sheet. Margins: small clear space around edges. Aspect Ratio: 4:5 vertical layout (portrait). No background scenery or color — just the drawing on graph paper. 🎬 Mood & Tone: Academic, artistic, minimalistic. Evokes the look of a technical sketchbook or architect’s ink drawing. Clean, calm, and focused on form, not decoration. 🚫 Negative Prompt (Technical Filters): (no color, no watercolor, no pencil, no crayon, no digital paint, no grayscale gradient, no shadows, no background scenes, no birds, no houses, no trees, no text, no glossy paper, no realistic textures, no distorted face, no missing grid, no altered proportions, no 3D shading, no sketchbook rings, no stains) ⚙️ Rendering Metadata (For Physical Realism): Shot on Canon EOS R5 macro, ISO 100, 50mm lens, f/4.0 aperture, daylight 5500K, PBR matte paper shader, roughness 0.6, reflectivity 0.1, ink density 1.0, film grain 0.05, microdust 0.03, soft HDRI top light.