I have seen a lot of great customs of this character before, but never on this site. I figured I would give it a try.
This was a great figure to start with, so not a lot of major changes made. The base figure (I'll just call it "Abby") had the perfect face and clothes. Her shirt was a bit low cut, so in order to make it Jenny's standard military greet t-shirt, I used epoxy to sculpt the shirt from the bust-line to her neck. I smoothed it out best I could, and when it dried, I used my dremel to sand it down a bit smoother. I also lengthened her sleeves a bit the same way. The only other major sculpt was the hair. Most of her hair is left the same, but I did crop a little off the back and used epoxy to clear the edging. I then created her ponytail using epoxy, molded it to the rest of her hair, and once it dried I painted it all pretty close to Abby's original hair color.
The rest was just paint. I painted her shirt a deep green and her pants were simply black. It took a few coats to make sure Abby's blue jeans and BRIGHT PINK shirt weren't showing through anywhere. :cP Her belt is scratch made from an old camera strap and a epoxy buckle.
Hope ya likes! Thanks for lookin'!