Very nice map - lovely architecture. Only problem is that it runs the danger of being a big flat plain with random objects placed upon it. Try to vary the height of the floor - steps up to raised areas, depressions.. etc. if not for gameplay reasons just to jazz it up a bit more.
Pros: It's a funny map, and the developer textures may look a bit "flat", but it adds something unique to the map
Cons: A displacement here and there would have been nice :)
Notes: On the overall, it's a nice fun-themed map. Good work!