The level design you are showing here is good inspiration for something I'm working on. I'm wondering though why you're putting opaque tops on everything. It would be easier to see characters in the corridors (and thus easier to play) if you leave the top of the level open. That way your view of the insides won't be obstructed (since the polygons are facing away from the camera.)
Incidentally, obviously I'm not referring to the ceilings of the corridors. I'm talking about the blackness OUTSIDE the corridors.
Incidentally, obviously I'm not referring to the ceilings of the corridors. I'm talking about the blackness OUTSIDE the corridors.