She is nice but she is sickle hocked. That is what is "funny" about her hind leg. They don't quite fit under her correctly.
It is hard to find good horses with correct conformation for dressage. You want low knees and hocks, laid back shoulder, excellent neck tie in, short back, smooth topline and really large roomy hocks.
The hind leg is very important if you are going to higher levels as the horse shifts his weight rearward and bends his hocks as well as places his weight on them. A laid back shoulder allows for flashy extensions...
There is something about the outside of a horse that is good for the inside of a man. ~Winston Churchill
) Dinosaur Horse Trainer