Beautiful sky! Not only are the colors spot on, but the subtle clouds break up the uniformity in a very nice way.

The car controls aren't too good, though, and it's disappointing that the roads are just cut off without being able to reach any of the visually highlighted places in the distance.

There is also some problem with the lighting, once you're in the car. There seems to a layer with specular light closer to the ground which looks off.

Still, very evocative scene, good job on that. :)