Love the way you used level design with your lighting, really cool feel to walk around.
One thing that I think could be improved on is the size of the levels. It took a long time to wonder around, and much of the map was empty, just reducing it's size to 1/3rd or even 1/2 of it's current size while keeping everything else the same would make the environment feel more full and greatly reduce walking around purposelessly.
Anyway fun game to play, nice submission!