I thought it was a lot of fun! I have some feedback:
Maybe a settings, for the quality. I was lagging, so maybe if there was a lower quality setting?
I also love the use of 2D sprites instead of 3D models. This can make the game more unique than all the other unity games. (Which mostly use 3D models.) I like how the mechanics involve throwing and picking up objects, and that can be used for lots of different puzzles. I really enjoyed it!