originalen507 characters
Using REFERENCE_0, restore the same kitten into a clean, realistic high-resolution portrait while preserving the front-facing composition, white fur with gray-brown markings on the head, blue background, and the beige foreground ledge at the bottom. Sharpen the face and eyes, add natural fur detail and whiskers, correct the proportions into a believable young kitten, improve lighting and contrast, and remove the heavy blur/noise so it looks like a crisp DSLR-style pet photo with shallow depth of field.