Well done! Love a nice puzzle game! The cat puzzles are hard but fun, really require thinking. They are also very well designed too! The last puzzle is just brilliant, hard yes but it's so rewarding once you figured it out. Also the cat and other characters are cute, giving much character to the game. Nice job!
And here come the nitpicks. I don't really like the potion puzzles, feels like they are a bit disjoint with the cat puzzles at the moment. Would need much more connections between them besides the story to justify that. It also take me quite a while to understand that red is reset and green is OK, which I guess needs some more UI work.
But overall, this is a very solid puzzle game! I enjoy it quite a lot. Well done!