To be fair, the first and last image are total toss away shots. In both cases, the camera man should be shot for making VERY basic errors. I didn't even bother with #4, because it is such a poor shot (sorry to the photographer, but you should never shoot with a really bright light visible half behind a model:
I don't like the shot, but there you go.

So much nicer... break the layers out in colors, saturate up the greens and blues seperately, warming filter for the girl, a little lightness.. didn't both to spend the time to tamp down her arm hair
Correct the overall contrast, plus pull the background out seperately and mute it down very slightly to let the girl pop.
Total work time for all 3 about 15 minutes.. I looked at 4, and decide it wasn't worth the required effort (which would need a pixel by pixel repair of the over bright light. It can be done, but you have to REALLY want the picture.
Alex