Capture a striking portrait of a 20-year-old korean girl with wet hair, angled from the side as she gazes upwards with her eyes closed, embracing the beauty of a rainy day. The droplets glisten in her hair, adding vibrancy to the image. Utilize sharp and realistic photography techniques to highlight her serene expression against a softly blurred, rainy backdrop. Use diffused natural light from the overcast sky to create even illumination, and employ a wide aperture (f/1.8 or f/2.8) for a shallow depth of field. This composition should evoke intimacy and tranquility, capturing the essence of the moment beautifully.