I have also posted this in the Nature and Wildlife section. Just thought I would get some input from the B@W side of the house.
This was processed in LR, Nik Color Efex 4. I don't have the Silver efex yet. Someday maybe. Anyways, here it is. A Brabant mare, just a little pregnant, out for a jog.
The square crop is an interesting idea. I could see that working as well
Great action capture and I like the toning and processing. The one thing I would change is to bring down the brightness of the kicked up dust. Too bright, too white, doesnt seem to fit in as seamlessly as it might.
Scott