A Prong Horn Couple

My wife and I love Prong Horn Antelopes. This image was shot in 2006 in Yellowstone NP with a 1D Mark 2 and 100-400 version 1. We were slightly off the trail and looking up at animals on a slight rise. They were totally comfortable with us. It was processed today using modern stuff.

What technical feedback would you like if any?

How does the processing look?

What artistic feedback would you like if any?

Any and All

Any pertinent technical details:

1D Mark 2 with original 100-400 Image from 2005

You may only download this image to demonstrate post-processing techniques.

A fine picture of the Prong Horns, coming uphill, the female appears to be more bold than the male.
There appears to be some magenta cast in the frame. Tilted trees and grass blades make me wonder if this needs some rotation.