It seems a little bit jerky - perhaps I'm seeing the part where the animation loops, and it's not quite smooth at that point? Otherwise, it looks pretty smooth, and the run really conveys her character well (at least from what I've seen in the other art).
I think you and a good friend of mine, @TheMaskedMonocle, would get along pretty well. You could talk about animating and each other's character designs and story concepts!