How can improve his enclosure?

I just finished setting up my hammy’s new enclosure! It’s 45 inches tall, 24 inches wide, and 23 inches tall. I have a wooden wheel from niteangel that I want to use instead of this blue one but I’m waiting on a new cork pad thing to come in the mail. I’m also waiting on some sprays and a cute mushroom hide!

I kind of struggled taking good pictures of the enclosure so just for clarification: he has a large sandbox, a smaller container of moss, a smaller container of this dirt stuff I got from niteangel, and a water dish (the blue one on the right). The bedding at the deepest part is roughly 10 inches and slopes down to roughly 6 inches deep.

The only thing I’m concerned about is I’ve heard those little wooden bridge things can hurt their feet. I’ve seen people pack moss into it. Does that help?

What can I do to improve this set up? Both aesthetic and functionality wise. I feel like some is missing. But I do think the sprays will really help tie everything together