There was a really wonderful thread about the American Saddlebred horse a ways back that had some video on them and how amazingly versatile they can be. I'll ty to find that.
This horse is I think in the process of perhaps trotting in place or kind of "Piaffing", I think. It is sunk down on its' haunches . It's neck and shoulder are beautiful. It's a bit wasp wasted but overall, it's a nicely built horse and probably far from delicate.
Here it is: The Amazing American Saddlebred