With some tweaking this could be a fantastic stand-alone puzzle game! The graphics are beautiful, but I feel the puzzles are a little bit too punishing.
For example, take the platform with the lever under it in level 11, damn it's hard to get blu on there, I restarted countless times. I feel it could've been made a little wider or you get some kind of arc of where the cubes go where you aim.
I don't know how hard that is to implement, but I feel that would help massively for the entire game!