Good idea with the blurring effect to show elements from other floors. The toilet on the bottom floor seems a little odd, it looks like you have urinals and a toilet in the same open room, I would guess you'd want stalls. And urinals would normally only be in bars and such not in private homes. (or maybe I'm missing what things are).
I'd throw in a direct door to the office on the middle floor so you don't have to cross through another room to get to it. And the rooms up there with the couches and such looks made for entertaining visitors -which would mean that you should have a second entry to the bathroom/toilet - so you don't have to enter the bedroom to get there. Good job