This game is really good! The puzzles are not that hard but there are many different ones which makes it really interesting to play.
I love the low poly art style, though there are some visible differences between different models, like the black fence is really detailed, while some of the other elements have much lower polygon count - it's really a small detail though, considering the time you had the graphics are really very good!
My only note for the gameplay is that I feel like movement was a bit clunky, like the momentum gain was too slow (starting and ending the movement had a little too much delay for me), but probably I'm just picky :) Overall, very solid submission!