Create an anime-style illustration of a boy with medium-length dark hair styled

Create an anime-style illustration of a boy with medium-length dark hair styled in a neat, side-parted way. He should be wearing an oversized blue denim jacket. The boy's expression should be one of curiosity, with one eyebrow raised and his hand scratching his head. The background should be a plain, light grayish-blue color to keep the focus on the character. Ensure the drawing has a clean, detailed, and slightly pastel color palette to match the aesthetic of modern anime illustrations.