Lovely artwork :D As others have noted, the UI is not super clear and a speedup would be nice. But you know that already, so let’s focus on other things ;)
I quite liked the idea of holding the mouse to start the level. Makes it feel like you’re winding this big big machine up, cranking the handles manually :D I also liked how the game has two functional dimension and how you can rotate everything! A worse game would just have had dedicated vertical and horizontal objects, but you went the extra mile! I looooove the artstyle, everything is super quirky. The descriptions also written in a sharp and fun way.
I think you’re successful in eliminating Turing completeness, as I really don’t see a way for the machine to not halt, given that you have a finite amount of objects each with a finite amount of possible actions per round. Maybe there’s some fun glitch to get an infinite loop ;)