After the first layer has dryed, we can go on to the next.
We’ll use umber for the shadows and details in the skin, while we use orange / red to “liven” the skin up.

A fairly dry brush is well suited to create the wrinkles and pores of the skin with umber.

For the red accents a slightly wetter brush may be better. Also, try to think about which parts of the body have better blood supply (usually fingertips, joints, nose, ears, lips, etc.) and add more reds to these parts.