/3/ - 3DCG

>>713414
Do you mean guides for Substance Painter skin? There should be a decent number of them online already (Substance official channel, Michael Pavlovich, FlippedNormals...)

If you mean how I personally did mine, then it was mostly the same way as they taught it:

1. Painting the color zones (red, yellow, blue...)
2. Tweaking the colors (adjusting the values above)
3. Adding shadows (with Multiply) and highlights (with Lighten (Add)).
4. Then I start adding make-up such as the lips and blush, and continue highlighting things I want with foundation. Also, I add eyebrows before exporting the rough draft of the textures to check inside Marmoset.
5. Finish adding make-up such as mascara and eyeliner, and start adding moles, going back in forth in Marmoset/SubsPainter to see how it looks and adding further things in the previous steps that I may have overlooked (ex: adding orange/green colors in step #1, or tweaking the shadows/highlights in step #3, changing lip color in #4, etc. etc.)

Of course, it helps a lot to have reference pictures on hand. I'm talking about photo-scanned textures or even head texture files of DAZ girls that you like. Those are really useful for giving you hints on where to paint blush or highlight certain areas of the skin. Oh yeah, and don't shy away from looking up videos of girls doing make-up tutorials online... It really helps the make-up part of the texturing.