PNG Isolated Human Hand and Forearm

isolated close-up stock photography of a single human hand and forearm, palm facing camera, wrist rising from bottom edge, fingers slightly curled and relaxed, thumb extended outward, natural skin texture with visible palm lines, knuckles, fingernails and subtle veins, centered on a pure white seamless background, clinical cutout style, soft even studio lighting, minimal shadows, realistic proportions, high detail, clean commercial medical reference photo, no jewelry, no text, no watermark