A Sunlit Moment in Blue Reflections

A healthy and refreshing indoor swimming sports photo. A 20-year-old Chinese female university student, youthful and vibrant, with a healthy and proportionate swimming physique, a naturally pretty face, and deep brown long hair tied in a low ponytail, with a few damp strands clinging to her cheeks. Her makeup is simple and clear, presenting the natural state right after completing a relaxed swimming practice.

She wears a simple, well-fitting sky-blue one-piece sporty swimsuit, paired with an open white lightweight sports shirt, standing barefoot by the indoor heated pool, holding a white swim cap and transparent goggles. She has just finished a short, relaxed freestyle swimming session in the pool, with natural water droplets on her shoulders and hair tips. Then she leans sideways against the pool ladder, holding the stainless steel railing with one hand while holding the goggles in the other, legs naturally crossed. She gently turns her head towards the camera with a relaxed, confident, and sunny smile, conveying an overall sense of health and naturalness without forced sensuality.

The background is a bright and tidy university indoor swimming pool, featuring blue swimming lanes, buoy lines, white tiles, large glass windows, and light reflections on the water surface. Afternoon sunlight streams in through high windows, forming a soft contour light on her shoulders and wet hair edges, with the water surface reflecting blue and white shimmer.

9:16 vertical format, knee-up full-body composition, eye-level with a slight downward angle, the subject positioned slightly to the side of the center, with the pool edge forming leading lines. Face and eyes are sharply focused, water droplet details are natural, and the background is moderately blurred. The blue and white clear color tone is ample, with a sense of airiness, soft highlights, natural skin texture, sports brand promotional video feel, fresh and healthy campus swimming photo, combining light exercise and natural posing, 50mm lens, f/2.5, soft window light, water reflections, photorealistic, high detail.

Minors, childish faces, juvenile body characteristics, overly sensual poses, revealing clothing, translucent clothing, vulgar atmosphere, stiff posing, exaggerated body curves, unnatural postures, deformed limbs, extra fingers, missing fingers, twisted palms, joint errors, legs stuck together, duplicated characters, duplicated sports equipment, asymmetrical face, unfocused eyes, plastic skin, excessive retouching, heavy makeup, over-sharpening, too strong HDR, over-saturation, harsh shadows, cluttered background, incorrect perspective, text, watermarks, brand logos, borders, anime, illustration, 3D rendering.