Pencil and Ink Sketch Transformation

{
  "prompt": "Use the reference photo as the primary reference for composition, proportions, pose, objects, and layout. Preserve the original identity and facial features accurately. Convert the image into a refined [pencil and ink sketch illustration] using clean hand-drawn linework, controlled cross-hatching, and soft tonal shading. Keep facial features, eyes, and hands sharp and expressive, while rendering background details minimally with light pencil sketches. The overall look is an elegant, timeless, professional hand-drawn fine art illustration.",
  "negative_prompt": "identity change, distorted facial features, cartoon, anime, 3D render, messy scribbles, heavy black fills, low quality, blur, noise, extra limbs, text, watermark, logo",
  "style": "refined pencil and ink sketch illustration",
  "mood": "classic, artistic, serene",
  "lighting": "subtle illustrative shading",
  "texture": "fine art paper grain, graphite and ink strokes",
  "render_quality": "hand-drawn fine art illustration",
  "reference_strength": 0.9
}