Fix the lighting and the graphics would've been great! Would actually be alright lighting, if there was diffuse reflection or something from the skylights. I walked a bit then discovered a lane in which it was a straight path (border of the maze). Had lots of skeletons chasing me, walked back and mowed them down. Continued on my journey, fell through outside the wall, got stuck on a ledge outside the maze structure, fell down, saw the square of maze above, felt calm and peaceful as it disappeared from view.
The dark atmosphere did help the tone of the game, though the lighting wasn't balanced well. Seems like it could have potential, though personally I think procedurally generated mazes could get annoying xD. Good work getting this far!