A different angle might work better on this shot. Here, it almost appears that the arm is the focus of the shot, though it's clear that the head should be. But because the head is farther away and smaller...our eye gets drawn to the arm.
Your subject isn't very well lit. A reflector would have helped to recycle some of the available sunlight for inclusion in your photograph. Because of the angle her left arm actually occupies more area in the picture than her face does.
This picture is one of the worst i've ever seen... maybe you were just kidding around... or not. It looks like it was taken with a picture phone. Sorry
LOL, It appears more like she's just whopped some butt, and is about to finish you off. The only processing comment is maybe lighten her up a tad, but at the same time the shadow helps the foreboding aspect. not much help am I?