Beautiful. The graphics are strange and simple and fit well with the theme; the music is perfect, haunting; gameplay is simple and easy, though I think an in-game note of being able to drag the rooms around would be helpful, just in case people can't figure out what to do in one of the rooms you visit.
For everyone stuck in the third puzzle: you have to take the image on the top left and rotate it 90 degrees to the left, that's what you're aiming for. I then got it in about a minute, so I don't understand why everyone is complaining, it's easy, and honestly, this is coming from someone who is usually awful at this stuff, so I really don't get the issue.
As a hint, what you need to go for is this - the X's marking where you need the lights.
[_] [X] [_] [_] [_]
[_] [_] [_] [X] [_]
[_] [_] [_] [_] [_]
[_] [_] [_] [_] [X]
[X] [_] [_] [_] [_]