Jay asked on this [Recoloring With Ink] post how many layers of ink I applied to get a nice coat on the doll's faces. It's been a long time since I inked a doll and I couldn't remember exactly. So here are two attempts that I did today:
This is a single layer of ink over an existing screening that took maybe 3 minutes. I did nothing to her left eye (facing you) and nothing to her top lip. Her right eye has one stroke of black over the upper eyelash. Her brow bone has one stroke of sepia that was immediately shaded and smeared downward using a dry paint brush. Her bottom lip has one stroke of magenta that was shaded upward using a dry brush.
A single layer is very subtle but you can still see a difference. The more layers you add, of course, the deeper and richer the color. You can use a dry brush or dry q-tip for shading. If you don't like it, you can use a wet q-tip to remove the ink, but you have to do it quickly.
Next I'm going to do a complete repaint using my half Bratz face that lost its screening in 100% acetone. Although you can get [white ink in a bottle] or a ["ivory" ink pen] (scroll downward at the links), I've never purchased or tried any, so I'm just using plain white paint for the eye whites. You can put this on with a brush or sponge.
Except for the white in her eyes, everything else is strictly ink. I used black, sepia, green, dark yellow and red. This took me about an hour to do. Yes, I know it's very sloppy, but I never said I could paint or draw a straight line, for that matter. 0.o This is multiple layers (3-4) of ink blended with a dry brush. The dry brush technique isn't a necessity, because you can blend the different inks with each other just by stroking one layer over the other.
From a distance, this repaint ain't half bad, so imagine what you could achieve if you have a steady hand or can actually paint. The best tip I can give is to create highlights by stroking a light color over a darker one. It will take away some of the color underneath leaving you with a gradual blended change. Also, clean off the tips of your pens by stroking over a piece of white paper until the true color shows. Otherwise, all that blending will leave you with messy tips.
Hope this helps ^_^.