Stunning digital illustration of a 20-year-old woman showing her back to the camera, posing with long flowing hair, exuding an alluring and sultry facial expression. The artwork is filled with natural colors, ultra-detailed, and unforgettable with its intricate design. The style combines elements of niji, comics, and anime, avoiding any low-quality features like blurriness or graininess. The image is free from duplicates and boasts well-drawn anatomy and proportions, with no text, name, signature, watermark, or logo elements. The final piece is in high-resolution, capturing every detail without any jpeg artifacts or cut-offs, emphasizing good anatomy and a well-structured body and face.