I can understand asking for a conformation critique for a horse for a very specific purpose. But as you say, any horse will be able to perform the tasks she is looking for, a vet exam is the best critique.
I still do say that this mare is kind of.... Sorry but her neck is all sorts of wrong to me. If I were to go out and purchase a horse, it would not be her.
Spent a whole hour today laying in a pasture, waiting for a sparkling vampire to show up. Alas, I woke up and looked over, only to find a mound of horse crap. Sigh.