I'm assuming this one is the most recent, since it's at the top, so...
Other stuff:
- Your choices of shading colors are pretty dull, such as in "Charon2." You can definitely push values a lot more than that. Normally, I would block out the colors first with a large brush size and then go into detail.
Specific to that image:
- Make sure to make use of curves and such in order to create an illusion of form, such as on her legs.
- Her nose is too high up.
Nitpicking:
- I think her legs fit normal proportions, I think she looks better with slightly longer legs.
- While her shirt's ruffles can work like that, it looks a tad bit strange.
Also, I dunno why you're uploading in .JPG, but I would suggest .PNG to make it much more appealing to the eye/retain quality!