Really wonderful, relaxing puzzle game.
Atmosphere was wonderful! Would it make sense for the box to auto-leave the level after it is completed, or is there some later mechanic that I didn't get to that requires you to move yourself on a ring of the circle? I went back and tested it today and didn't seem like I could move myself.
On the later levels, when moving multiple rings, it was difficult to tell which rings I was moving– one was highlighted more prominently, but the other was a bit muted. If you don't want them to be the same color, perhaps some glow or lighting effect to indicate which ones you have selected?
What puzzle games did you take inspiration from?
Great work on this! Really enjoyed it and hope you keep updating!