Nice work! Would love to see more. I attempted a model of my school (from memory - it has been many many moons since I attended school) - but came to the conclusion that the architects of my place of education were obviously insane. Or my modelling abilities aren't quite what they could be: I ended up with a structure Escher would have been proud of.
Again, nice level. As Toz mentioned, very reminiscient of GTA3 - which can only be a good thing. Mine own levels are so far more reminiscient of pacman.