Congrats on your first Godot game! I thought the game mechanic was really original and has a lot of potential for a full puzzle game. I enjoyed the first level and how it required you to use change your rotation in both ways. The handdrawn style art is charming and the overall design is great.
One minor nitpick is that it would be nice to have bolder outlines or some other stylistic indicator of which objects are affected by your rotation and which are not. I was a bit confused at first that spikes weren't affected by my rotation.