復古半色調網印側影海報

{
  "task": "將參考照片或知名人物轉化為復古半色調粗線條海報藝術風格肖像插畫。",
  "input": {
    "subject_name": "[簡·多伊]",
    "reference_image": "the reference photo",
    "instruction": "準確還原人物面部輪廓與特徵，轉化為鮮明的圖形化海報藝術。"
  },
  "output_exclusions": [
    "嚴禁包含任何原始參考照片的縮圖、圓角浮窗或對比貼圖——僅輸出純插畫海報。"
  ],
  "art_style": {
    "medium": "模擬絲網印刷/膠印平版印刷風格的數字插畫",
    "influences": [
      "20世紀60-70年代復古抗議宣傳海報藝術",
      "模板網印風格圖形插畫",
      "孔版印刷（Risograph）質感",
      "復古雜誌封面及搖滾音樂會海報設計"
    ],
    "line_work": "高對比度墨線描邊，結合精細排線（Cross-hatching）與點描陰影，髮絲紋理分明",
    "rendering": "色塊平塗與版畫風格細線刻畫結合，杜絕寫實漸變、氣刷柔化或平滑過渡"
  },
  "composition": {
    "pose": "頭部與胸口呈嚴格90度正側面朝左，視線平視前方，下巴微昂，自信沉穩的神態",
    "framing": "豎版構圖，人物佔據畫面高度的70-85%，胸部以上剪裁",
    "focal_backdrop": "頭部後方居中的純色大圓輪廓（佔畫面寬度60-70%），髮絲與輪廓區域性重疊出框",
    "hair_treatment": "充滿細節的動感發流，利用高對比墨線與鏤空高光體現體積感與流向"
  },
  "background": {
    "base_texture": "粗糙復古亞麻紙張底紋低透明度覆蓋全幅",
    "layout": "圓形背景周邊的非對稱幾何色塊拼接與區域性半色調網點圖案",
    "grain": "微細的傳統膠印顆粒雜色與可見的網點肌理"
  },
  "color_palette": {
    "background_base": "溫暖米白懷舊紙色 (#e8dcc4)",
    "accent_circle": "醒目海報正紅 (#c1272d)",
    "linework_and_shadow": "濃黑墨色 (#1a1512)",
    "highlights": "同底色的米白留白高光"
  },
  "typography": {
    "headline": {
      "content": "[JANE DOE]",
      "placement": "海報左上角內襯留白處",
      "font_style": "特粗緊縮無襯線或粗黑體，全大寫，緊湊字距，1-2行排版",
      "color": "墨黑色"
    },
    "subheadline": {
      "content": "[VISIONARY LEADER]",
      "placement": "主標題正下方",
      "font_style": "粗緊縮無襯線體，全大寫，單行",
      "color": "海報正紅色"
    }
  },
  "lighting": {
    "style": "單一強側光照射，形成鋒利硬朗的幾何陰影面",
    "shadow_rendering": "完全由排線、交錯線條與半色調網點疏密構建陰影"
  }
}