I like the interaction between the little girl and the horse. There is a connection there
However, I'm not so sure about the crop, the poor horse to the right has no head!!! <wink wink>
Also, the fence is in the way. However, I don't think it is necessary to get her to go past the fence. The girl is much smaller than the horse, so we can play around with that and exaggerate it. Try getting low enough so that the horizontal part of the fence is above the horse's head. Not only will it be out of the way, but that viewpoint will exaggerate the size of the horse, perhaps making a more powerful image.
I know, it's so easy to sit here by the computer and see all this; not so easy to see it all on location. The good thing is that you can go back!