Hard to tell from just one picture and her standing over her front end and out behind.
For a riding horse not aimed to the top, I kind of prefer those TBs without the overly large, tremendous shoulders others like.
While they give you that stride, they are harder to put and keep together without them getting in their own way.
Many excellent jumpers had a bit less shoulder, more straight and so managed to fit in tight spots well.
She seems to fit all around, longer underline to her belly, longer over the top of her neck, not as refined as most females, which is an asset for what you want.
I am not sure of her expression, but it is just one split second in time, maybe was asked to be more alert for the picture than she normally displays, she may have relaxed the next one.
You know, from one picture, especially today when we can enhance and improve them, I would not make much of a decision, just go see what she is in person and, more important, how she is when she moves and how she handles.
The pedigree looks like a mix of types, hard to say what may have come thru in her.
She really doesn’t stand out as any one of those lines I have known in particular.