A woman with long brown hair and green eyes posing for a picture

(photorealistic:1.37), woman with beautiful, long brown hair, stunning green eyes, and a slim physique, (realistic:1.37) detailed facial features including defined eyebrows, elegant eyelashes, and perfectly contoured lips. she is a 21-year-old girl with a youthful and radiant complexion. The image should be full size and ultra-detailed, showcasing every strand of her hair and each subtle expression on her face. The lighting should be natural, with soft, diffused light illuminating her features. The colors should be vibrant and true to life, enhancing the realism of the image. The overall image quality must be of the highest standard, with a resolution of 4k or above, capturing every intricate detail and creating a masterpiece.