Thank you for idea, though... the logo on roof looks really bad, so I couldn't resist and make my version. Then... :) naturaly, I start to edit some more and add a few more logos. Now it look much more realistic. I'll show you the differences. And keep file for myself, giving respect to your work.
Heres your version: http://oi60.tinypic.com/azdrmt.jpg
And mine: http://oi61.tinypic.com/xftj6e.jpg
Hope you won't mind...
And, maybe, we can make some project together. Who knows... :)