Nice dusty shot with good action. When you have the chance to spot edit I would dodge the dog as to bring a little bit more attention to him. Also some of the left side could be cropped out a little bit as it does not add much to the image. Maybe up to the right side of the second tree from the left. Good job. 10.
I have to say that I love the colors and the mood of this shot, but for me, its unfortunate the tops of the trees were cut off .. I would like to see what it looked like as a wider crop... still, I really like this shot, awesome job :)