You did good with the crop.
The pose sucks, but that's a different issue though it is hosing your composition and making it difficult for you to use the ROT.
The girl's shoulders should be on an angle to the image sensor plane, about 45 degrees. A diffuser camera left could have toned down that harsh side light so you could have gotten an exposure on the side of her face that wasn't so hot. The horizon in the background is tilted and a bit busy. It draws attention away from your model.
::trainwreck:: mentioned bokeh, but I don't think he is using the term in the right way.
It is desireable to have the background out-of-focus in many types of images. That is not bokeh.
Bokeh is the visual quality of a blurred background and is entirely a function of the lens used. Good bokeh is promoted by the number and shape of the aperture blades in the lens.
There are 2 kinds of bokeh. Regular bokeh and Hollywood bokeh.
Regular bokeh is very smooth and creamy whereas Hollywood bokeh is large bright dots, like from heavily blurred lights.
At any rate, I hope that all helps.