Cheerful young woman by a tranquil lake

Ultra-photorealistic portrait of a cheerful young Caucasian woman standing beside a calm lake at golden hour. Warm sunlight bathes the scene; her hair is light brown and windblown. She wears a pastel sundress, subtle makeup, and a relaxed smile. The water reflects a clear blue sky and the surrounding green trees, with distant mountains on the horizon. A shallow depth of field keeps her in sharp focus while the lake and landscape blur softly. Cinematic lighting, natural textures, realistic skin, and fine detail reminiscent of high-end photography. Mood of joy and serenity.