I really liked the puzzles!
I'd suggest you to move interaction/attack keys to "J/K/L" if you're enabling controls for "WASD" and jump for "Space," for games you're going to make in the future. Using "WASD" keys for movement and keeping my thumb on "Space" all the time makes it hard to use keys in between.
Other than that, good job on utilizing the use of resolution restriction. The art looks awesome! I really like the sound effects and the audio overall as well. And, the most important part, the levels were fun to play and solve!
Well done!