Cheerful Caucasian Woman in a Photorealistic Gym

A photorealistic image of a cheerful young Caucasian woman in a modern gym. She smiles brightly, wearing a pink athletic tank top and black leggings. She stands near cardio machines, exuding energy and positivity. The gym is bright with large windows letting in soft natural light, polished floors, and a blurred background of treadmills, weights, and other equipment. Realistic skin texture, natural hair, and a subtle sweat sheen for authenticity. Cinematic lighting, 50mm lens perspective with shallow depth of field, high-resolution detail.