Washstand — Shell Curved Marble Washstand

Generate the image described by this JSON specification. Obey the
input_images role mapping exactly: image 1 controls camera/geometry
only; the remaining images are the appearance ground truth.

{
  "task": "Clean studio \"silo\" product photograph for an e-commerce catalogue.",
  "subject": "Washstand — Shell Curved Marble Washstand",
  "camera": "azimuth 0 deg around the subject, camera level with the subject. Matches image 1 exactly - keep the same viewpoint, framing, zoom and crop; do not re-frame.",
  "input_images": {
    "image_1": "Rough 3D turntable render - CAMERA & GEOMETRY AUTHORITY ONLY. Reproduce its exact camera angle, framing, perspective and aspect ratio. IGNORE its colours, materials, lighting, textures and low-poly / render artifacts.",
    "images_2_to_4": "Real photographs of the actual product - APPEARANCE & STRUCTURE GROUND TRUTH. The output product must look IDENTICAL."
  },
  "style": "Ultra-high-end commercial studio product photography, sharp focus.",
  "background": "100% PURE FLAT WHITE #FFFFFF AND ONLY WHITE. Only the subject + a single soft contact shadow beneath it.",
  "output": "Output ONLY the silo photograph."
}