Awesome style and cool puzzles. Didn't get to spend much time on it but I really enjoyed it. I don't have much critical feedback since I could only spend a bit on it, maybe a bit of SFX or music could help though. Well done!
Not sure how long does it take to solve the puzzles as someone that have never played. This is a sign of "more play test needed" for sure! Come to think on it, since I'm the one creating the puzzle, solving them probably just take me 5 seconds.