Hmm, I only really agree with points 3, 4, 7 and 8 by scubadiva.
Add a door**** of some kind and make the cord smoother.
I have no idea how the habbo got to the roof as the gap under the roofing doesn't look big enough for a habbo to fit through. Move the fridge back a bit, it looks very randomly placed, I'm not sure if I've seen many fridges so far away from a wall in the lounge room of a house. When your black/trasnparent blue lines are used a lot like in the far right window It looks strange, try replaicng them with a darker blue. Hmm...