This is such an ironic shot. The location is so isolated, and the unhealthy looking woman standing under the vitamin sign holding high fat food is just so odd. I like the flat sky and the harsh light too. It all adds to the weirdness. Why is she just standing there like that? What is she waiting for? What is she looking at?
I really like the geometry and the low perspective. It really fills in the frame nicely and the toning is wonderful. At first I thought it might be better if there was more interaction with the subject and the viewer, but the more I look at it the more I like how is just perfectly perpendicular. She is the scene.
Your framing of the shot is fine. The subject doesn't draw me in. Having the person somewhere else in frame, or doing something other than just standing there may help.