Sorry. I don’t see the pictures (of course, I’m new and might not be looking in the right place). It sounds like he has enough, but some rabbits get bored with spaces like these. I actually have two free roam spaces for my bun. He has an x-pen inside with only a small upper story, and I also let him run around my balcony. It’s bunny proofed and there’s a fan out there. Of course, I never let him out them when I’m gone, but it’s useful for when I need to vacuum and stuff. Additionally, I usually have his x-pen open in such a way that he can only explore my living room (where his cage is), my bedroom, and bathroom. The rest of the apartment is blocked off by his pen.
Constantly changing his environment keeps my bunny entertained. I also like switching up what’s in his x-pen. Today it’s a converted ikea table for a second story, tomorrow it might be his cardboard box with windows cut in the sides. It doesn’t take much time to make the switch, and he’s more active when I keep things interesting for him.
If you have any room for a run, I’d highly suggest that as well. Having some safe outside time is something that I lot of bunnies really enjoy.