nice game I really liked the concept , would fix UI element blocking levels 4 and 5 and in game objects also I would reorganize main menu because the level window and the tutorial/sound window are over one and the other.
you don't need to be embarrassed , game jams are for fun the comment are meant to show you another perspective and where to improve as a game developer in future project , the fact that you made the game is a good sign so keep growing and keep improving :)
