A (rock art) painting owned by my niece.
Given that this is a transparent watercolor, the white images of the petroglyphs have to be planned for in advance because the white of the paper has to be saved. This can be done one of two ways, using a mask/masking fluid or painting around the whites.
In this painting the petroglyph images were masked out first. Once the masking has thoroughly dried then the underpainting washes of color are laid on top of the masking (which is nearly invisible at this point). Once that paint has dried, one rubs off the maskit and the images appear again on top of the soft blended colors of the background.
Another example of the use of maskit. The design assignment was “RED” as subject matter.