The logo looks nice, although i personally am not sure about the highlighing within the tank's barrel, simply because it shouldn't be that light, but your stuck with drawing with 2 tones...
But it looks great, but you need to update the preloader now... it's still the old one :(
You havn't designed a large 3d version fo the logo yet for the side wall of your building?
Well, congrats on the logo, and Underworld is nice, except it's a little too graphicly intense for my computer :(