I like that name!
You're on the right track, and i'm glad you're so receptive to learning, however the enclosure is still pretty open. It might be easier to clutter a smaller enclosure if money is an issue.
Here are a few ideas:
Add a few inches of substrate and make some pre-made burrows with hides over them. They hide in pre-made burrows like these in the wild.
Get two identical hides. He may feel safer in one than the other and give up a comfortable temperature to feel safer in a certain hide. Giving him two identical hides will make him feel safe while still providing his ideal temperature. You can still keep all your hides, just make sure to get one that is identical to another.
Try taping brown or black construction paper on 3 sides on the outside of the tank.
You're aiming for fake plants that are heavy bodied and have thick leaves that spread out, similar to pothos plants, and try placing them near or over the hides or in the middle of the enclosure. Adding a thick layer of substrate will help the plants stay in place since BPs tend to bulldoze.
And just a reminder if you missed it the first time:
A jumbo mouse or weaned rat would be more appropriate at that weight.
Here's some tips: https://www.reddit.com/r/snakes/comm..._from_live_to/
Good luck!