Just wanted to note, don't add chunks of bark from nearby woods... Bark rots quickly and possibly contains various living organisms that you don't want in your enclosure. Plastic leaves would be fine, if you wanted to.
But this point reminds me though, the more secure a ball python feels, the better their appetite is. Their sense of security can affect their appetite. It's possible that he can switch to pre-killed or F/T easier if you can alter his enclosure a bit. The half log hides are open from both ends. Some BP's only feel secure with a hide that can enclose them completely.
These kinds of completely enclosed hides with one small entrance are better for ball pythons, than the half log hide. https://www.reptilebasics.com/hide-boxes