Her neck ties in very high on her shoulder, which gives her good depth of chest, but can also produce high head carriage and an inverted way of going. Her neck is also short compared to her overall body length.
Prominent wither with a signifigant dip behind the wither; better topline muscle would help but won't change it entirely.
What would worry me most about her as a pleasure/sport horse prospect is that she is going to be extremely difficult to fit for a saddle with that pronounced wither.
She is also going to be a difficult reclaim if you want a horse with a relaxed top line or a round way of going.