Portrait palettes are very simple the difficulty comes with the understanding of form and the use of light to show the form accurately.
The so called Zorn Palette is typical of what you need it’s comprised of Ivory Black, Vermilion and Yellow Ochre.
If you add Cobalt Blue to it you will be able to get stronger greens but it’s not really that necessary as the Ivory black has enough blue in it.
Nearly any low intensity Red, Yellow, Blue will set you on the right track skin tones are very muted.
“What peaches and what penumbras! Whole families shopping at night! Aisles full of husbands! Wives in the avocados, babies in the tomatoes!—and you, Garcia Lorca, what were you doing down by the watermelons?”
— Allen Ginsberg
Are you ready for a Journey
PS Critiques always welcome but no plaudits or emoting please.