That looks greatCould you try stronger, more directional environment lighting though? Either that or turn down the env brightness and use more spotlights, right now the lighting looks a bit flat and uninteresting.
Very nice-looking geometry, Captain Clam.
May I suggest you use for the two curved 'pillars' in front of the building to use a white concrete texture instead of the blue one used before it? It would add texture variation and look much more Valve-like
Something is definitely up with that roof, but we can't really see it from this angle.