This is very well made game that feels most complete of all the games in this game jam. It has atmosphere, greatly supported by lighting and awesome sounds, it has fitting visuals and great mechanics making it interesting experience for the player. The only thing this game needs is more levels.
There is not much to be added upon previous comments. But my father would add one thing - it is not obvious for player where to go. There should be something that leads player to the right (or from the left).