There are a couple of things to like about this image.
Firstly, the camera position is low, providing an interesting angle of view.
Secondly, there is some rim lighting on the subject, and that gives her some definition.
Thirdly, the background directly behind her is a nice contrast.
However, the large post on the left of the image detracts from all of this because it is bright and it is not totally OOF. Would you consider cropping the photo at the right edge of that post with the bottom along the border of the garden below her feet?
Like this:
I reckon that might make for a better image - you'd lose the distraction and some of the dead foreground, but still should have a nice line leading to the subject.
Nice candid shot, anyway.