photorealistic portrait of a beautiful 20-year-old woman, long silky platinum blonde hair flowing down her back, striking icy blue eyes with long lashes, flawless skin, seductive expression, lying sideways on a luxurious dark blue sofa, turning her head to look at the camera, wearing a white cropped t-shirt knotted at the front showing toned midriff, high-waisted grey seamless leggings that hug her curves, prominent round, slim waist, perfect body proportions, soft warm ambient lighting, beige curtains in the background, elegant modern interior, sharp details, realistic skin texture, depth of field, 8k uhd, masterpiece