Let me just say something to put this back on track..
Defrobo, take your time.
I saw that you wrote in the first post that you use a wacom, I totally missed that, which is why I mentioned fluid motions and using a mouse. If you draw pixel by pixel it makes it harder to do quick iterations and changes.
Pixel by pixel is necessary in certain places like the eyes and face though, and also when cleaning up lines.
But I think that in general you should focus less on line work and more on volume, for example her chest and hair doesn't have volume, they have outlines which imply the opposite, that it's a flat shape. Think of a ball with volume vs a circular plate which has none.