I think you did well. Panning photos of people who are running isn't easy, because the body parts are all moving at different speeds. Here, the face (the most important part) is in focus and is fairly sharp.
Sure, there's a bit of blur in the face, but it's not bad at all.
If you could've pointed the camera down just a bit, so all of her body and less trees would be in the shot, that would've been an improvement.
Good work.
