Cooolio! Now this may sound odd, but I would have cloned out the air conditioning unit on top of the truck - and maybe the white vent in front of her chin - they are both distracting and add nothing to the image. Otherwise, like I said, coolio! :)
Would of given you a higher score if the tree in the background wasn't there ... it takes too much away from the subject. Otherwise an interesting idea - just re-compose the shot
Intersting colors! It's also interesting what you desided to desaturated and what you left in color...IMO you did a little bit too much burning/dodging on the face, but it's kind of interesting.
Neat hair but there is too much going on in the photo to distract from the hair which should be the main focus. A very busy background that competes with the main subject.