I like the look of your game! I agree that some feedback would help, it wasn't ever immediately obvious what was happening after I pushed a button. Also, for some reason that I was never able to understand, after the first puzzle where you create the bridge, I didn't always get the same thing in the level: sometimes I got a box to push onto a button that would let me continue (unless I soft-locked myself by putting both boxes to the right of the ramp that is created,) and sometimes I would get a ledge that I could only get up by climbing on the other box, and when I continued the level, it reset me for no clear reason. It wasn't bad to play, but it seemed kind of inconsistent and confusing, but I did like how it looked and felt, so I'm sure with more time it would come out really good!