Amazing game! The concept didn't immediately pull me in as much as Edna did, but it had a surprising amount of depth and the mechanics you chose to explore were really well chosen and made for some great levels. The puzzle design was excellent, as usual. Might be nice if there was an "undo" button, but the level design often allows you to undo your mistake anyway, and I figure this would be something you would definitely add with more time.
It's also one of the most complete and polished packages I've seen! Everything from smoke particles to dynamic block expressions makes the game feel like a finished, professional product. It's unreal how good the music and sound design is, easily professional-level IMO, and perfect for the game. It seems like a perfect fit for a mobile game if you ever wanted to go that route.