I think there's a lot to like about this mare. Her back is short and her neck is NOT ewe necked. There is a dip in front of the wither bone and this can develop after the horse is ridden too long in false collection; breaking at the third vertebrae of the neck, rather than the poll, and coming behind the bit. The muscles that are normally there then atrophy and leave that dip.
Her knees look a little light of bone and tied in behind, more on her right than left. I do not see cow hocked and I think her rear legs have good angle and sufficient bone.
She is not the sturdiest horse I have seen, but has very nice balance, a lovelyhead and will be a nice west. plea. horse, if you ask me.