Nice Start, but what's the scale? Based on the steps and the tiles, I would say the hallways would be around 8-10 foot wide. One possibility is to wall off the hallways to make dormitories(very small... if 10 foot hallways, perhaps 10 x 5 rooms with bunkbeds and that leaves 5 foot hallways). However, given that scale, your libraries might be a tad small (perhaps on purpose???) unless they span multiple levels with no ceiling.