Lesson Six and Final

Ah man, needs squaring up.
Circular gradient applied.

This is better.
Linear gradient applied across the diagonal.

The Original from the Camera.
Can never get the camera horizontal.

First, square it up with the world.  Then using transform do a minor adjustment to the perspective and then crop it.
Select the sky and do a Smart Fix on it followed by a little adjusting tweak.   Notice that the cars on the right have moved behind some growies.