This is seriously amazing (especially when I read that it's your first game!)
I like the theme interpretation, and the game overall is incredibly polished. Very good audio, song, and visuals. As others have said, the only feedback I have is that there should be a visible grid (maybe faint, semi-transparent, but there), because at times it was difficult to measure distances.
I think there's a bug on the last level. I pressed <-, then ->, then up, and won lol. It seems I bonked into an invisible wall and got right next to the hole. It didn't take anything away from my experience tho, as a matter of fact it was kinda funny.
Really nice entry, one of the coolest I've played so far.