Strength in Detail: A Fitness Portrait

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      "no_over_smoothing": true
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  "subject": {
    "gender": "female",
    "pose": "bicep_flex_with_dumbbell",
    "arm_position": "upper_arm_slightly_bent_elbow_close_to_body",
    "hand_position": "firm_closed_grip_around_dumbbell_handle_thumb_wrapped",
    "body_focus": "single_arm_only",
    "physique": "clearly_muscular_athletic_arm",
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      "fingernails": "long_elegant_fingernails",
      "nail_polish": {
        "color": "deep_sporty_green",
        "finish": "high_gloss"
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  },
  "object": {
    "dumbbell": {
      "weight": "3kg",
      "material": "matte_rubber_coated",
      "color": "deep_sporty_green",
      "text": "3 KG",
      "surface_detail": "subtle_realistic_wear_texture"
    }
  },
  "composition": {
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    "focus": "razor_sharp_on_bicep_hand_and_dumbbell",
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    "negative_space": "clean_white_background"
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  "lighting": {
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    "highlight_behavior": "controlled_highlights_on_sweat_and_skin",
    "shadow_quality": "soft_natural_falloff"
  },
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    "type": "pure_white_seamless",
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  "camera": {
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    "iso": 50,
    "shutter_speed": "1/250",
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    "skin_tone_accuracy": "very_high",
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