ภาพพอร์ตเทรตสตูดิโอขาวดำทรงพลังด้วยแสงบัตเตอร์ฟลาย

{
  "style_prompt_template": {
    "subject": "[a distinguished man]",
    "aspect_ratio": "9:16 vertical",
    "canvas_size_guidance": "1080x1920",
    "shot_type": "medium portrait shot, head to mid-torso visible, facing camera",
    "photography_style": "dramatic black and white studio portrait, editorial fine-art photography",
    "composition": {
      "face_position": "face centered horizontally and vertically in frame",
      "face_size_in_frame": "face occupies roughly 20-25% of frame height, ample negative space",
      "eye_line": "eyes aligned at approximate vertical center of canvas",
      "headroom": "generous dark negative space visible above head",
      "crop": "visible down to mid-chest or waist, displaying shoulders and suit",
      "surrounding_space": "wide expanse of negative black space surrounding subject",
      "alignment": "subject facing straight forward, symmetrical framing"
    },
    "lighting": {
      "type": "single hard top-down spotlight, butterfly and Paramount lighting",
      "quality": "harsh, narrow beam with steep falloff",
      "key_highlight": "top of hair and forehead catching sharp rim light",
      "shadow_behavior": "deep shadows under brow, cheekbones, and jawline; steep light-to-dark gradient",
      "background_light": "none, pure pitch-black background with subtle spotlight cone falloff"
    },
    "color_treatment": "monochrome black and white, high contrast, deep blacks, rich dynamic range",
    "background": "solid pitch-black studio backdrop with subtle vignette",
    "wardrobe": "dark tailored suit jacket, white dress shirt, dark tie, formal business attire",
    "expression_and_pose": "neutral and composed expression, direct gaze into camera lens, relaxed shoulders",
    "skin_and_texture_detail": "authentic visible skin pores, fine lines, subtle stubble, unretouched texture",
    "hair_detail": "individual strands crisply illuminated, natural texture",
    "camera_and_lens": "medium format studio camera aesthetic, 85mm portrait lens, shallow depth of field, razor-sharp focus on eyes",
    "grain_and_finish": "subtle fine film grain, crisp micro-contrast, glossy editorial finish",
    "mood": "intense, authoritative, cinematic, timeless"
  },
  "negative_prompt": "color cast, flat lighting, soft focus, blown highlights on face, busy background, wide smile"
}