Very fun game! The concept is good and I like how it's executed here. The speed-up button for the witch is a good touch too. My only criticism would be that I wish the ground buttons had more feedback or indication as to what they do or what they interact with, I didn't realize they were buttons or what they did until reading some comments (although that could just be me, it seems other people understood it fine).
Also, the art is very nice :)