Short but sweet. I liked the art style and music, and the mechanic made for some good puzzles.
I feel stupid but it took me a second to figure out that "lit" didn't mean just directly under the window (or lamp?). I guess the ray of light stood out more to me then the lighter squares. I think that's more of a me issue though.
The one improvement I could offer would be to add little checkmarks next to each individual requirement when you mouse over a piece of furniture. Could help if there's any confusion like that.
Very cool game overall and I would be down to play a lot more levels.