Generate a bright, highly photorealistic fitness portrait of a young athletic woman performing a functional training exercise with a medicine ball in a modern gym. She stands in an athletic stance while holding a large textured medicine ball close to her torso, preparing for a controlled rotational movement. She wears a fitted beige sports top, dark gray leggings, and clean training shoes. Her body should appear naturally toned and athletic, with realistic definition across her arms, shoulders, core, and legs. Her face must remain completely visible, sharply focused, and evenly illuminated. Have her look toward the camera with a confident, energetic expression. Use soft frontal lighting on her face combined with natural overhead gym illumination. The background should contain kettlebells, resistance bands, plyometric boxes, dumbbells, and functional training equipment, softly blurred but recognizable. Add subtle perspiration to suggest an authentic workout. Pay special attention to accurate hands gripping the medicine ball, realistic fingers, natural posture, believable anatomy, detailed skin texture, individual hair strands, and authentic sportswear. Use a professional 50mm lens perspective, natural color tones, cinematic depth of field, realistic shadows, crisp facial features, and high-end fitness campaign photography. Avoid exaggerated muscles, artificial skin, or CGI-like rendering.