Portrait realistic minimalist warm gentle.

Ultra-realistic portrait, a beautiful standing by the large windows of an empty , daytime, posing naturally, looking directly at the camera with a gentle smile. One hand casually placed on her hair, relaxed and confident posture, modern Korean fashion aesthetic. Wearing , minimalist elegant style. Long straight black hair with soft natural volume, flawless fair skin, delicate light makeup, delicate necklace. Warm sunlight streaming through tall windows, cinematic natural light, soft shadows, clean academic atmosphere, green blackboard and Korean flag visible in the background, shallow depth of field, highly detailed, realistic skin texture, DSLR quality, ultra-sharp focus, comfortable youthful atmosphere, vertical composition, 3:4 aspect ratio.