Ultra-Locked Gym Portrait Photo Prompt

{
  "template_id": "ultra_locked_photo_replication_gym_standing_bw_v3_short",
  "version": "3.1.0",
  "intent": "Replicate the original standing gym photo with pixel-level fidelity while replacing only the man's facial identity. Pose must remain fully upright, not leaning or in a push-up stance.",
  "camera_lock": {
    "orientation": "landscape",
    "aspect_ratio": "16:9",
    "camera_height_m": 1.35,
    "camera_distance_m": 3.1,
    "camera_pitch_degrees": 0,
    "lens_focal_length_mm": 50,
    "focus_plane_m": 3,
    "f_stop": 2.8,
    "iso": 1600,
    "crop_lock_pixels": {
      "left": 0,
      "top": 0,
      "right": 822,
      "bottom": 462
    },
    "framing_lock": {
      "center_x": 0.5,
      "center_y": 0.53
    }
  },
  "body_proportions_lock": {
    "muscularity_scale": 1,
    "shoulder_width_ratio": 0.63,
    "torso_to_hip_ratio": 1.3,
    "arm_thickness_scale": 1,
    "ab_definition": 0.8,
    "sweat_sheen": 0.85
  },
  "pose_lock": {
    "pose_type": "upright_standing",
    "torso_pitch_degrees": -4,
    "head_pitch_degrees": 12,
    "shoulders": {
      "left": {
        "x": 0.32,
        "y": 0.3
      },
      "right": {
        "x": 0.68,
        "y": 0.31
      }
    },
    "elbows": {
      "left": {
        "x": 0.31,
        "y": 0.5
      },
      "right": {
        "x": 0.69,
        "y": 0.5
      }
    },
    "wrists": {
      "left": {
        "x": 0.31,
        "y": 0.72
      },
      "right": {
        "x": 0.69,
        "y": 0.71
      }
    },
    "hands": "relaxed_downward",
    "elbow_flexion_degrees": 166,
    "shoulder_abduction_degrees": 10,
    "forbid_pushup_lean": true
  },
  "clothing_geometry_lock": {
    "shorts": {
      "color": "black",
      "waistband_height_cm": 3.5,
      "inseam_cm": 12,
      "fit": "trim",
      "fold_density": 0.3
    },
    "wrist_wraps": {
      "present": true,
      "color": "black",
      "height_cm": 7.5
    }
  },
  "anatomy_surface_lock": {
    "chest_hair_density": 0.95,
    "ab_hair_density": 0.85,
    "vein_prominence": 0.75,
    "sweat_distribution": {
      "forehead": 0.92,
      "chest": 0.94,
      "arms": 0.78
    }
  },
  "lighting_lock": {
    "style": "high_contrast_bw",
    "key_light": {
      "type": "overhead",
      "intensity_lux": 1900,
      "temperature_kelvin": 5200
    },
    "fill_light": {
      "ratio": 0.22
    },
    "background_light": {
      "wall_brightness_ratio": 0.55
    },
    "contrast_curve": "S_curve"
  },
  "environment_lock": {
    "type": "gym_long_wall",
    "wall_angle_degrees": -9,
    "background": {
      "dumbbells_blur": 0.6,
      "rig_blur": 0.55
    },
    "ceiling": {
      "beam_direction": "diagonal",
      "vanishing_point": {
        "x": 0.76,
        "y": 0.04
      }
    }
  },
  "pixel_coordinates_lock": {
    "anchors": {
      "head_top": {
        "x": 0.5,
        "y": 0.09
      },
      "chin": {
        "x": 0.5,
        "y": 0.26
      },
      "sternum": {
        "x": 0.5,
        "y": 0.37
      },
      "navel": {
        "x": 0.5,
        "y": 0.5
      },
      "waistband": {
        "x": 0.5,
        "y": 0.63
      },
      "left_wrist": {
        "x": 0.31,
        "y": 0.72
      },
      "right_wrist": {
        "x": 0.69,
        "y": 0.71
      }
    }
  },
  "replacement_identity_rule": {
    "replace_only": [
      "facial_features",
      "head_shape"
    ],
    "preserve": [
      "upright_pose",
      "muscle_size",
      "arm_positions",
      "lighting",
      "camera_position",
      "gym_background"
    ]
  },
  "prohibitions": {
    "no_pose_change": true,
    "no_pushup_pose": true,
    "no_muscle_modification": true,
    "no_environment_change": true,
    "no_colorization": true
  },
  "output_settings": {
    "resolution": {
      "width": 822,
      "height": 462
    },
    "drift_tolerance": 0,
    "negative_prompts": [
      "no leaning forward",
      "no push-up posture",
      "no change to arm angles",
      "no lighting deviation"
    ]
  }
}