First MOC attempt: Criminal Base

This is my first attempt at a MOC. It's supposed to be a criminal base built inside an abandoned building, and I tried to design it so it goes along with the lego police station 7498. It has a small bunk room, a records room, a meeting room with a mixing machine, a storage room, and a money printing room. Any suggestions on how to make it better would be appreciated. Also, I put the scattered chairs in there to make it look messy, but I'm thinking of taking them out. Any thoughts? ...