First, potentially good subject matter for this challenge. Let me give a couple quick critiques that may help in the future. In a shot like this it is very important to have the horizon straight. The camera appears to be tilted toward the right. Second, the picture seems "soft". I'm not sure if this is a result of down-sizing for the web or not, but it is something to watch for. Finally, if there is any way to get the image to the maximum allowable DPC dimension (640), definitely try and do so! Keep shootin'!
Beautiful horses and great composition but it would be perfect if it wasn't so blurry: Needs to be sharper or at least the horses need to be. If you didn't use a tripod, you should.
this photo is dull and seems a bit crooked. It needs more spice to it and it seems to have been taken from low to the ground for no reason (unless you're a kid, then it's understandable and your picture is pretty good!)