Graphics in the game are great (I love black outlines of the models).
Music is nice, but I think it doesn't fit to the game theme (but it's nice).
There are also some things I would change: Player movement - rotation by A/D keys is a little bit unresponsible, I would like to move it by my mouse. Second thing is that some distance between e.g.columns are too long. You could reposition them.
In overall really cool entry. Good job!