Thank you so much for your feedback! It really means a lot that you took the time to leave such a thoughtful review. The graphics didn't look misaligned in Unity, but something got messed up in the WebGL export—and I didn’t have enough time to fix it before the deadline. Sorry for that rough edge!
I love your suggestion of using pictures instead of just abstract shapes, I think that could add a new layer to the puzzles. And I completely agree about the difficulty curve. I tried a bit too hard to stick to the 4 and L-O-O-P theme, which led to skipping over a smoother progression. In a non–game jam setting, I’d definitely spread out the challenge more gradually. Thanks again for the encouragement and great insights!