The underpainting technique is to establish a basic form, scale and proportion of a model using light and shadow, which creates the foundation for a beautiful painting. The wipe-out method is the best way of creating the underpainting technique.
The Grisaille technique is used to further develop the painting after the Underpainting technique. Building a value range from lights to darks emphasises the clarity of the tone of the head structure.
To establish the contrast of value in the flesh tones over the Grisaille technique, the Titanium White on the base creates a brilliant optical glow for the light flesh tones at the final stage.