Chân Dung Phù Điêu Trên Bột Cà Phê

{
  "input": {
    "referenced_image_ids": [
      "the reference photo"
    ]
  },
  "frame": {
    "aspect_ratio": "3:4",
    "shot_size": "Close-Up (CU)",
    "orientation": "Portrait",
    "composition_guide": "Center Framed"
  },
  "subject": {
    "subject_type": "Human Face Impression from reference",
    "identity_summary": "Match the reference photo person's face exactly, formed as a pressed bas-relief impression in finely ground coffee powder rather than a drawing or print.",
    "visual_signature": {
      "facial_signature": {
        "face_shape": "Match reference photo exactly",
        "eye_nose_lips_jaw": "Match reference photo exactly",
        "unique_features": "Preserve identity, facial structure, and proportions without alteration"
      },
      "material_signature": {
        "material_type": "Finely ground dark roast coffee powder",
        "texture_detail": "Micro-granules, natural clumps, scattered loose powder dust, realistic tactile compression"
      }
    },
    "inventory": {
      "objects_present": [
        "Mound of dark coffee grounds with face impression centered",
        "Stainless steel teaspoon resting on the right side filled with coffee powder"
      ],
      "objects_absent": [
        "No text",
        "No logos",
        "No cups",
        "No hands"
      ]
    }
  },
  "environment": {
    "setting_type": "Indoor tabletop studio",
    "background_surface": "Warm neutral beige matte surface, minimal and clean"
  },
  "lighting": {
    "primary_source": "Softbox diffused light from upper-left",
    "shadow_quality": "Soft, natural relief shadows accentuating powder contours",
    "color_temperature": "Neutral-warm daylight"
  },
  "camera": {
    "angle": "Top-down flat lay",
    "focal_length_mm": 50,
    "aperture": "f/5.6",
    "focus_behavior": "Sharp focus across face relief and spoon, subtle organic depth at outer edges"
  },
  "post_processing": {
    "art_medium": "Tabletop macro photography",
    "style_modifiers": "Realistic commercial product photography, natural tactile contrast, authentic material textures"
  }
}