Very nice. I don't like the placement of the like button - try putting it where the 'magnifying glass' goes for editor mode? You won't be editing other peoples' houses, so it won't be required?
No reward is kind of a downer - especially considering that housing is the only activity that costs anything in game to compete in.
Maybe a plaque or a little model house, depending on your placement?
I especially enjoy the little gnome face on the icon in the menu.
Cheers guys.