I definitely liked the shrinking curse gimmick, but I feel it could be expanded upon in a more than cosmetic way. Currently shrinking stops at a certain point and doesn't actually impact the player, so I'd recommend things like traps that only trigger once you're small enough, or some kind of combat system that gets harder the more you shrink (so like, rats are an easy enemy and you can just squash spiders but once you get small enough then rats become more of a challenge and spiders can actually hurt you) though given it's supposed to be a puzzle game I don't think a combat system in required. The puzzles could also be harder, since currently they're just taking one statue to another (pretty obvious) place. Sylvia was alright, but I didn't really like her that much. Going off the size combat idea from earlier, maybe Sylvia could help you in fights once you get too small, but the catch is that every time you get her help she gets crueller, and if she's too cruel then she starts messing with you in dangerous ways until she just kills you once you're too small. Either way, a sort of morality scale for her would be cool