Looks really nice, good work!
Some suggestions if I may
-I would fill in the spaces between the ladder rungs with Popsicle/lolli sticks as open space can be dangerous to hams
-I'd also have a majority of the cage be 8-10 inches of bedding (as this is what is best for Syrians) and the burrowing area be around 12 inches or more if possible
Looks like you put a lot of effort into it, and it definitely shows