Hey!
First of all, great game! I love the audio and the visuals are really great. It was really fun solving those puzzles and the SFX were very nice!
If you want some feedback, here's mine: I think you should make a tutorial on the game explaining the core mechanic so that the player understands what he has to do. Other than that, you really did an amazing job.
Really great work. Congrats on making this game alone in one week, I love it!
I would love to have you playing mine too, if you don't mind of course! ^_^