First of all, the game is beautiful to watch, congrats to the artists!
Secondly, I think that the submission kind of falls short in puzzle design, but as short as it is I'm not really bothered by it. My only problem with that is that the idea behind of only having one light is GREAT and I think its potential is not showcased in the build. But with some work and well thought out puzzles this could be a great game that I would definitely play, and with pleasure. So, overall, I really liked the idea, great job!