Pinky up, long slick blond hair well tied up, cute little preppy face makes her look like she couldn't shoot to save her life. While there's no rule against it, it makes her look a lot more suited for Beverly hills then outer space battle. My suggestion would be to balance out the nice feminine elements (like those cool hip boots) with some more practical one (like a more military hair style, and no pinky). You could also go the other way around and push it towards humour with a wool shirt tied around her shoulders and a chiwawa, it really depends on what your intent it with this character.
Personally, I like her head facing front because it's more appropriate for a concept piece, but the side view was aestheticly pleasing to.