Tweaked the design a little bit, mainly the addition of the cybernetic arm.
My initial thoughts are that she's one of the last members of her species, having lost her homeworld years ago. While the last remnants of her species are trying to re-establish their on some colony world, she's taken the opportunity to go out into the galaxy. Get herself some tats, dye her hair and get some piercings, have some fun, lose her arm and maybe bang a few aliens, maybe one of those "Humans" she's heard about...