This was a beautiful opportunity and just the kind of light I love. This was the best I came away with. Before I go into photoshop to try and salvage it, I'm open for all comments. I could crop to isolate the two horses in the middle, maybe do a vertical, reduce the flare--who knows? Good Luck!
I do like the two horses who have their heads flung up in the middle, but I'm not sure about how well the flare can be removed in PS. As they stand now, they seem washed out. I would say try a few things (cropping into a vert. I think would work well) and let us see what you came up with.