An ultra-photorealistic fine art nude portrait of an adult Indian woman with deep brown skin, posed gracefully in a modern living room. She is seated on a dark sofa, leaning slightly forward, with a modest, sculptural pose that emphasizes form and elegance rather than sexuality. Her expression is calm, introspective, and dignified. Her skin has a subtle oiled sheen with visible natural texture, pores, and tonal variations. She has naturally wavy, shoulder-length black hair and minimal or no makeup. Lighting is soft, diffused, and window-like, gently sculpting the body. Shot as if on a Nikon D810, full-frame, 50mm lens, f/2, ISO 200. Extremely high resolution, natural contrast, Nikon color science, fine-art museum-quality nude photography.