Is that maynard from cars? hahaha...I actually like this picture. There is a lot of dead space but it works because obviously the truck is the main subject in the photo. Love the old rusty textures in the truck.
One suggestion would be to frame it in so your eye stays engaged. I keep looking to the outsides area of the frame which I think my eyes are telling me it needs something to keep me drawn into the image. A black border or some sort. Either straight edge or soft edge would work. I would not go white. Thats just my opinion.
cool....