Blocking in the background grey and the light lavender of the sky. I paint almost up to the tree edges, but don't want to pick up any extra color into my sky color. I've also put in the second road color here, and some darker lines for the ruts in the road. These rut lines will help break up the horizontal shadow shapes and give more of a suggestion of road. There is still a bit of blending to do, since you want the road to "lay down" flat as one unit. Flattening the texture and easing the edges will help. I won't do too much blending right here, since the addition of the middle ground colors will detract from all this action.