Well, for her body I use a combination of 3 multiplying layers. I fill it in so the whole body is in shadow and then erase the areas I want highlighted with a transparent brush. The first layer I do with just airbrush, second with a watercolour brush,( I then lower the opacity of these 2) and the third with another watercolour brush- the third one is the strong shadow.

For the other parts I only use one multiplying layer, erasing the highlighted areas with the watercolour brush.

Then I highlight stuff with a white airbrush.



Hope this helps!