here is a better look at the dirt track. I darkened the area in photoshop to reveal the hoof tracks in the dirt.
The next pic is a better look at the shadow cast by the left rear hoof on the dirt track. This is not a painting or drawing - it is from a photograph and that is a fact!!!!
If anyone has horse magazines laying around could you please look for the pic. Look for a young horse on a dirt track possibly not an injured one (As the broken leg might be photoshoppped). Look for the tell tale shadow under the rear left hoof. The lighting is in the early morning This could be a private photgraph but I 'm betting the photograph is in a horse/racing magazine.