光影肖像

{
  "prompt": "A dynamic portrait of a [{argument name="subject" default="man"}] against a deep [{argument name="color" default="red"}] dark gradient studio background, featuring superb, high-contrast chiaroscuro lighting. A soft horizontal band of light illuminates the subject's eyes and partial forehead, the band is sharper below eyes and across nose and get's soft towards the eyebrows and forehead is dark, casting the rest of their face and body into deep very dark shadow, almost silhouette. The [{argument name="subject" default="man"}] is facing directly forward but looking off-camera with an intense expression. The image has high professional detail, resembling a shot from a V-RAPTOR - RED Digital Cinema camera, with rich smooth textures and a shallow depth of field, focusing on the illuminated eyes. No text or logos are present.",
  "options": {
    "COLOR": ["red", "blue", "green", "yellow"],
    "SUBJECT": ["man", "woman"]
  }
}