Thanks for the comments guys.

Total Rookie: Yes after you posted that, I noticed it too. It did look a little spacious. I decreased the size of the room and made it look more cluttered.

Phynix: I agree, the stairs were a little big. I decreased the size and brought it nearer the cage slightly. As for the chair, it looks a little small because of its angle. I'll move it around, though.

Here's some more progress of what I have so far.