Thank you and sorry, I don't have the painting part recorded. Usually I use Color Spray and an Alpha like Alpha 07. Painting a base tone manually, then painting slightly blueish tones around the yes. more red-rose around nose and eyes corner. Forehead may be a bit yellowish. Neck and ears are usually has more reds. I also like to paint darker tones around cavities. Instead of using cavity masks and projecting pictures I prefer paint. As a final touch up I use image based textures. Please not these colors are subtle, and changed carefully, skinshade4 is working great and some wax can help. It is faster to paint manually the broad areas and use pictures for touch ups. Usually pictures need to be carefully prepared and tone should be adjusted before start using them. If the paint is manual, I can keep images for specific details, like around eyes, ears, navel, lips, hands&fingers. This reduces the search time and editing of images. Not a tutorial, but hope it helps. Have a good day :)

Hello, I have used the Spotlight function within ZBrush. But Spotlight meant to be used as a projection painting tool, so in the brush settings you have to look for turning off Menu --> Brush --> Samples --> Spotlight projection. To use spotlight you can find further tutorials.

Hi, When you change a material it will affect all the models by default, To have a material permanent select the subtool, make sure the M material channel is turned On on the top shelf and use Color --> FillObject, this will assign a material to the subtool. Once this is done you can change the material again and it will update only on the rest of the (unassigned) subtools. Be careful, if RGB is turned on as well it may flood with color and not just material. Hope this helps, Mark