I found these images (explaining how to mix paints to achieve different skin tones) incredibly useful so I wanted to share them. They are from from “Painting the Head in Oil” by John Howard Sanden.
Such a Time as This fauve impressionist illustration style Louisiana landscape painting • professional oil painting technique • painterly, thick and loose • postimpressionist style landscape painting with the evening sun through trees, and a path going into distance (Just Landscape Animal Floral Garden Still Life Paintings by Louisiana Artist Karen Mathison Schmidt)
Medium - Adding linseed oil alone to a color will increase the flow but won't give the sharpest edges. Adding thinner alone gives sharp edges but a chalky appearance. A medium of HALF CITRUS THINNER AND HALF LINSEED OIL is best for most situations.