The Art of Precision: Gemini Nano Banana Pro

{
  "replication_mode": "PX-LOCK-ANATOMICAL — POSE, PROPORTION, AND FRAMING FIXED",
  "intent": "Exact visual reconstruction of the attached reference image using neutral anatomical descriptors only",
  "image_geometry": {
    "aspect_ratio": "3:4 portrait",
    "crop": {
      "top_margin": "minimal; hair nearly touches top edge",
      "bottom_margin": "mid-thigh cutoff",
      "left_margin": "includes microphone body and boom arm",
      "right_margin": "includes torso edge and skirt pleats"
    },
    "subject_centering": "subject offset slightly to camera-right"
  },
  "camera_lock": {
    "imaging_class": "mirrorless/DSLR look",
    "lens_equivalent_mm": 50,
    "subject_distance_m": 0.9,
    "camera_height_relation": "slightly above ocular plane",
    "pitch_degrees": -8,
    "yaw_degrees": 0,
    "roll_degrees": 0,
    "focus": {
      "plane": "ocular region",
      "depth_of_field": "shallow portrait; background separation maintained"
    }
  },
  "posture_and_pose_lock": {
    "global_posture": "seated with mild anterior trunk inclination",
    "trunk": {
      "anterior_flexion_degrees": 6,
      "axial_rotation_degrees": -4,
      "scapular_protraction_degrees": 8,
      "effect": "forward shift of thoracic soft-tissue envelope consistent with gravity"
    },
    "head_and_cervical": {
      "lateral_tilt_degrees": -6,
      "tilt_direction": "subject right",
      "cervical_extension_degrees": 3,
      "gaze": "direct to camera",
      "expression": "neutral-soft affect"
    },
    "upper_extremities": {
      "arms": "flexed and resting near lap; hands out of frame",
      "constraints": [
        "no elevation",
        "no hand-to-face contact"
      ]
    },
    "lower_extremities": {
      "seated_alignment": "knees angled toward camera-left",
      "visibility": "upper thigh visible due to garment length"
    }
  },
  "anatomical_geometry_lock": {
    "region": "thoracic region (anterior soft-tissue mass over rib cage)",
    "classification": "very high anterior thoracic soft-tissue volume",
    "distribution": {
      "upper_pole": "full",
      "lower_pole": "heavier mass with gravitational descent",
      "medial_convergence": "pronounced due to garment geometry"
    },
    "sagittal_metrics_mm": {
      "sternum_to_anterior_apex_projection_mm": 72,
      "sternum_to_max_soft_tissue_projection_mm": 75,
      "intersternal_soft_tissue_depth_mm": 40
    },
    "transverse_metrics_mm": {
      "medial_clearance_upper_mm": 6,
      "medial_clearance_mid_mm": 16
    },
    "mechanical_behavior": {
      "gravity_response": "visible inferior and anterior displacement",
      "support_source": "garment provides containment without artificial lift",
      "forbid": [
        "volume reduction",
        "artificial elevation",
        "flattening"
      ]
    }
  },
  "garment_interaction_lock": {
    "inner_layer": {
      "type": "lace undergarment",
      "color": "true red",
      "cut": "low anterior opening",
      "fabric_response": {
        "tension": "elevated along medial seam",
        "distortion": "subtle stretch consistent with contained mass"
      }
    },
    "outer_layer": {
      "type": "fitted knit cardigan/top",
      "color": "dark neutral",
      "closure": "partially buttoned",
      "fit_response": "anterior opening widened by thoracic volume"
    },
    "lower_garment": {
      "type": "pleated skirt",
      "pattern": "black-and-white plaid",
      "length": "short; superior thigh exposure consistent with seated posture"
    }
  },
  "hair_and_face_lock": {
    "hair": {
      "color": "cool ash-blonde",
      "style": "long loose waves",
      "part": "deep lateral part (subject left)",
      "distribution": "substantial hair mass draped over anterior thoracic region on subject right"
    },
    "facial_presentation": {
      "skin_finish": "natural satin; no airbrushing",
      "cosmetics": "defined lashes, neutral tones; no structural alteration",
      "constraints": [
        "no facial reshaping",
        "no ocular enlargement"
      ]
    }
  },
  "environment_lock": {
    "foreground_object": {
      "object": "large black microphone",
      "placement": "camera-left, angled toward oral region",
      "support": "boom arm visible"
    },
    "background_elements": {
      "left": "decorated tree with warm point lights",
      "center": "geometric room divider",
      "right": "dark foliage wall"
    },
    "flooring": "neutral carpet"
  },
  "lighting_lock": {
    "primary": {
      "type": "soft frontal key",
      "origin": "camera-left",
      "effect": "even illumination across face and thoracic region"
    },
    "secondary": {
      "fill_ratio": 0.7
    },
    "accent": {
      "left_background": "cool cyan",
      "right_background": "soft magenta"
    }
  },
  "px_anchor_constraints_normalized": {
    "anchors": {
      "ocular_left": [
        0.44,
        0.21
      ],
      "ocular_right": [
        0.57,
        0.21
      ],
      "nasal_tip": [
        0.51,
        0.26
      ],
      "oral_center": [
        0.51,
        0.3
      ],
      "thoracic_apex_center": [
        0.52,
        0.55
      ],
      "microphone_center": [
        0.22,
        0.46
      ]
    },
    "tolerances_px": {
      "face": 10,
      "thoracic_region": 16,
      "microphone": 18
    }
  },
  "negative_constraints": {
    "forbid": [
      "pose correction",
      "camera reframing",
      "volume minimization",
      "beautification filters",
      "wardrobe substitution",
      "background simplification"
    ]
  },
  "match_priority": [
    "ANTERIOR THORACIC VOLUME + SAGITTAL PROJECTION",
    "TRUNK INCLINATION + SCAPULAR PROTRACTION",
    "GARMENT TENSION RESPONSE",
    "CAMERA ANGLE + CROP",
    "OBJECT PLACEMENT"
  ]
}