Thank you for looking and the critique.
@ Ryan: I think you’re right on the over-saturation, although the image on TPF seems more saturated than it does on my monitor (off my HD). Going to have to play with that to see where this is happening. As for the panning and the movement, I got locked into the idea that I was going to pan the shots and didn’t explore other ways of capturing the image. Yours is a useful reminder to think of other shooting options besides the one I fixed on.
@ Eventer: you know, I didn’t even see the collar on the front horse until you pointed it out. I guess this was a case of seeing what I wanted to see, rather than what is actually there. The title I gave the shot was inspired more by their behavior and exuberance, but that’s hard to see in a still photo. Obviously, I did not completely capture that feeling and convey it to you. Well, more practice needed. Not exactly sure what you mean by the last part of your reply: “the timing is out on both for a trot”.