Hi Wayne,
I think I wrote about another of your images the other month and so I am going to keep this description short. Again, the slow shutter speed / panning technique is working well for your choice of landscapes.
The only thing that needs adjusting in this photograph is the top left and the lower right corners. In the top left I find that the branch on the diaganol is distracting my attention away from the otherwise pleasing visual of the vertical trees. I would crop the left to eliminate that one branch.
Now in the lower right we can see the grey of the road. Rather than cropping this, I would subltley change the grey to green by using the paintbrush tool. Sample a suitable colour near the corner and then use the paint brush tool with the flow set to about 10% to just add a couple of brush strokes of colour over the grey. The main aim is not to destroy any textures that reveal the movement.
Cheers,
Anthony