Very nice job. I want to say some words on it.
The last changes on trees are not better than old, in my opinion. It's given a sharp, posterized look. Now my advices:
* If you add some little bendings and distortions on the road,
*If you add some big bendings and distortions on the hedges,
*If you use much more blurry back view (higher amount of DOF)
this part will look more realistic and nice.