i have add one of my work in progress drawing,
Well i'm still trying to find my style,
When working with a tablet:
Do a rough sketch with an easily identifiable color, doesn't matter if you miss a few lines. Just keep going, trying to get a basic figure. don't worry about shading and detail work yet.
Now make a new layer and trace your favorite lines with a black paintbrush. If you're not sure about proportions etc, it's best to save each 'part' to a new layer. For instance, the head, breasts, torso, arms and hips are each a new layer in the above image.
When you have all these layers saved you can trace over them to get smooth line art. With a tablet it's easy to do so, with practice, however!