I love everyting about the image. The cattails..that's what I call them frame the horse prefectly. The horse has his "Happy ears" on. A lot of people don't know to catch that. Very peaceful
Daring and original. There is much to be liked in this. The sunkissed side of the horse, of course, then also the little delicate grasses. I would have prefered a fill flash be used for the front of the horse, but I guess you wanted a partial silhouette.
If there was a bit more definition in the facial features of the horse, I would have scored it better. Aside from that I love the colors and the soft foreground.