Painting with a Monochrome Underpainting
Once the underpainting dries, I go to my palette and select "true"
colors to match the values that I
had picked for my monochrome underpainting. It's important to keep the
values as close as possible.
I begin with light
scumbles so as not to fill in the tooth. I also re-establish my lightest
darkest areas, taking care to note the sunlit tree in the shadows and
the wedge of sunlight pouring in.
I continue to work with the "true" colors. I begin to model
the rock surfaces.
I continue to model. I add in the lighter-colored layers in the rocks
near the top. I start
thinking about adding "skylight" to the rock faces that are
somewhat horizontal and which
would be reflecting the blue light of the sky.
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