She has a tree growing out of the top of her head and her elbows and arms are cut off. Also the background isn't interesting enough to take up so much real estate.
And not just "a tree", but the largest-diameter, blackest, meanest, nastiest one in the whole patch of woods behind her...see how over in the middle of the frame the trees are smaller, and more out of focus and lighter, and less intrusive? Over to the left of the frame, right up above where the darkest fencepost in the chainlink fence is a good, slightly out of focus gathering of trees, right in-between ther two darker, bigger trees...now THAT location could easily fit her head in between the trees, and maybe it would work better.
Now, except for the arms resting on the table not being shown, and being cut off by the edge of the frame, I really LIKE her wry expression, and the over the shoulder, angled sunlight is used pretty well in this B&W conversion. The shadow that her cheek casts, and the excellent highlight on her forehead, and the fairly good amount of light on her whole face, makes this actually a pretty well-done "reality shot" type of exposure. Yeah, the light is strong, and highly directional, but this really says, "Nice day during late winter weather." I'd disagree that the background is not interesting to take up a lot of space, since I see this as a sort of "backyard environmental portraiture" effort. But yes, eliminating at least some of the background would probably be a good idea.
The LIGHT there was good. I really wish maybe you had stepped over 5 steps, and moved back a ways and used a longer lens, to narrow the background a bit, and to lower the DOF on the background. But her expression, pose, and all, pretty good, really. The "situation" and the light, and the woman are ALL very appealing, very nice...but I would have loved to see her dark shirt contrasted aginst the light colored yard and chain link, more in the middle of the frame, and minus the most-prominent tree sprouting out of the top of her head. Just a little bit more movement of the camera to the right, or having her scooch over to the left maybe 4 feet would have been an inside the park home run, or at least a stand-up triple, I think.