-the outfit - the lines (zippers?) on the pants really stand out and it just looks cool -her hair - it fits with the image so well. I think it looks slightly dry and brittle, which is fitting with the background, etc.
This photo is quite intense. The subject looks extra-terrestrial in a way, like a dark (but not necessarily evil) being who finds refuge in nature rather than technology. Whether or not that was your intent, that's my particular interpretation. Very nice work.