Untitled AI art by @awe-inspiring-tower

A book cover (no titles, letters, etc. just an illustration) of a Murder Mystery book? Its title is: Curiosity Killed a Cat; the motive for the cover is a staircase, a cat's shadow, and a mystery figure in the background (without showing their gender); It can be quite gloomy, but not just black-and-white; I'd like it to have some color to it but toned down. Its size is 5"x8".