Ultra-detailed studio fashion portrait of a young girl wearing an avant-garde ivory couture dress with exaggerated sculptural volume, puff sleeves, structured satin fabric and dramatic circular layered skirt with visible fluffy petticoat texture underneath. The dress has a soft rounded collar and delicate tailoring details. She wears white knee-high ribbed socks and glossy white Mary Jane shoes with strap fastening. Long straight hair styled sleek and smooth, parted naturally, finished with a thin white headband. Natural soft childlike makeup, barely-there glow, clear skin, subtle rosy cheeks.Pose: standing slightly angled, one leg crossed elegantly, one hand resting lightly on a minimal white pedestal block. Expression calm and poised, editorial child fashion vibe.Background: seamless light grey studio backdrop, high-key soft diffused lighting, minimal shadows, clean luxury editorial aesthetic, ultra-sharp details, couture campaign photography, 8K quality.