A photorealistic full-body portrait of a 34-year-old Japanese woman with medium black hair, swimming in a serene lake. She is wearing a black T-shirt and black panties, both garments are completely soaked and clinging to her body, with darker, water-saturated fabric, heavy wet folds, and a distinct water sheen. Her skin is glistening with water droplets and a wet texture, and her medium black hair is plastered to her head and shoulders from the water. She has a cheerful expression on her face. The scene is set in a natural lake environment with soft, ambient daylight reflecting off the water surface. The composition is a full-body shot capturing her entire figure and face, high-resolution, sharp focus, cinematic lighting, realistic skin texture, and natural water movement.