I agree with @Duy's comment, the AI for the follower is pretty good! I also loved the idea of manipulating earth/tiles..
and now .. some minor criticisms...
The camera movement can make the controls a bit hard, though I don't know if the way I played is the intended way, but I was able to "fly" by grabbing a piece of land and push myself from below ..
When the children is following, it seems to like to stand on top of the player, making it impossible to jump..
other than that I enjoyed playing it :)