It is very difficult to say much about her movement in a round pen with such a small diameter, do you have any pictures where she is able to move a little more freely? Also in the first picture she seems to be struggling in the sand with those little legs!
I bet she would have bigger movement in a different setting.
If you would like a proper critique, get some pics of her standing square and from the side, behind, and in front. We can't really tell much from these pics other than she is colored nicely and is cute