Great photo! I love how you captured the one yawning, the other looking totally unispired sleeping around. Its too bad how the shadow fell across the thirds nose, but hey whatever, this is one of my favorites (my horse obsession shows through)
I think the foreground horse on the left stole the shot. What an interesting expression, I dont know if he's laughing or angry at the camera and coming to stick a hoof in your face. The backdrop of the mountains is of course breathtaking, although shame the sky didnt come out a little more bluer. As the central horse is a little dark it's disappointing that the other horse's shadows fall on him/her. I think the shadows, be they very unfortunate and uncontrollable, just brings the overall appeal down a little.