Create a photorealistic, ultra-high resolution 8k portrait of a stunningly beautiful slender girl with a naive and innocent expression, posed ergonomically in a captivating sci-fi setting. Her hands are securely cuffed, and she gazes directly at the camera with intense focus. She stands in front of a futuristic, pristine sci-fi white lab, complete with mustard-colored grids and advanced equipment. The scene is illuminated with dramatic Rembrandt lighting, enhancing the overall ambience. The girl's hair color contrasts strikingly against the clinical backdrop. Avoid any elements that might distort the figure or degrade the quality, such as poor anatomy, excess limbs, or artificial obstructions. Ensure the composition exudes natural light through round windows, solely highlighting the girl's captivating features to achieve a spellbinding and immersive visual.