Nevermind about those last requests for edits! After talking with my client, he fell in love with your color scheme (the shading on the sky, the mountains, etc.). I think if you're able to edit the truck a little bit for us, we would feel comfortable ending the contest early and naming you the winner.
Do you think you could shrink the size of the truck to make the house look bigger by comparison? Maybe 75%? We are trying to make it look like our actual Peterbilt we use for moving structures of up to 280 tons! It is a lighter grey (almost a flat silver) with blue pinstripes. If you can get the truck a little closer by maybe minorly adjusting it to be more square around the cab area, and without the rounded shield on top, we love the rest of your design. It's actually a better concept than we imagined... It really communicates a homey/heritage feel, and absolutely captures AZ culture.
So what do you think? Could you edit the truck a bit more so we can call this a winner?