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Super Edity-poo, part 2!:
I felt your initial portrait had some issues with, albeit little. Her neck was doing this strange thing where it was thin at it's peak, but got wider/thicker as it moved down(not very natural, even by cartoony standards...). Also, her jaw line wasn't very defined. It's jaw line was supposed to be angled from the chin to the lobes of the ears, but the initial portrait looked as if it was only going towards the front end of her side burns, instead. Also, her arms seemed a wee bit big. I also opted to freshen her hair up a bit, instead of having it kind of messy(this is just a personal preference, not something that's a big issue, really). Changed the eyes up, slid the teeth a little more to the left, brightened the shirt up a bit and got rid of the blacks inside the portrait, leaving it only as the outline, and eye shadow. (by the by, just as an experiment, I decided to give the first edit some shine in the hair, and the second, I left without, just to see the difference)
Hope to see further updates...