Ok here we go. First of all some tips on making this go well for you. First of all, make sure your sculpt is COMPLETELY cool. Don't make the mistake I made the first time I tried this, and wait until it is cool enough to handle, but still warm, because the paint will dry WAY too fast. Also don't try this under two very hot lamps like I am trying to do. It makes the paints dry quick too, and trying to take photos, paint, and work fast enough to keep it from drying is a major pain in the....well you know.
Also it is a good idea to thoroughly wash your sculpt before trying to paint. Sometimes the oils in your hands during sculpting or handling after baking will cause the water based paint to separate. A good way to prevent this is to use a soft toothbrush and some dishwashing liquid, I prefer Dawn or something that really is tough on grease. Scrub it everywhere gently, and rinse thoroughly with water. Allow to dry completely before starting.
Here is where we are now, and I'll repost this later at the end so you can see the difference.
I use a container I bought from the store used for putting food in with separate compartments. It works great for mixing paint, and is deep enough to where I can add plenty of water and not spil it everywhere. I add a bit of paint first, and then add a LOT of water.
Using a brush, I make sure it is mixed thoroughly. Be sure there aren't bits of thicker paint floating around in the mixture.
Notice that the brush I am using has white bristles and you can still kind of see it through the paint it is so thin. You want a watery mixture, not something that is thick. If you are using tube paints, you will need to mix in more water. It's better to have too much water than not enough, because what I am doing here is basically staining the polymer, not painting it. The more paint you have in the mix, the darker the stain will be. It's better to go through this and find you need to add more paint, than to get done and see you should have used more water, and have to go through taking it off with alcohol.
Now here is where you need to work quickly! Apply liberal amounts of paint all over the sculpture.
Using a rag, wipe off the entire sculpt, You can't wipe it all off, so don't worry about rubbing it too much. Pay special attention to the creases.
Using some of the sponge wedges, get into the corners of the eyes, behind the ears, inside the ears, in the nostrils, and all the wrinkles! Our skin is not darker in the creases, the creases themselves give shadows, and if you have sculpted your piece with enough detail, that is all you need to make it look correct. Leaving paint in the grooves and crevices, just makes it look unnatural.
Inevitably, there will be areas that you cannot get it all out. Ears and nostrils are a major headache when it comes to this. At this point I will take a clean brush and wet it with plain water, and swirl it around in any areas that still have paint pooling in it. Don't forget behind the ears!
Now using plain water, I go over the entire piece, this will help make things more even.
Now dry it off again using a rag.
Now this may seem like a waste of time and energy, because you won't be able to tell a whole lot of difference, but we aren't done yet. The trick to making it look real, is to build up layers, minute layers of color. This is why painting on thick opaque layers doesn't look right. Look at the difference between what it looks like now and what it looked like at the beginning:
Before:
After:
If you want more color, like someone is more tanned, you can add more layers of the same color. Don't try mixing the paint with less water, just allow what you have to dry, and you can use a hair dryer to speed things up if you wish, and do another wash. I may be doing this several times with increasingly less paint and more water later on. Remember this is just a base coat, and the very beginning, but notice already the slight difference between the before and after. We will be adding a lot more, barely noticeable things later on down the road, but all of it will add up to give the illusion of real skin.
I'll post more tomorrow!