|1. one color grisaille|
|2.one color underpainting|
|3.two color oil underpainting|
|4.watercolor full color underpainting|
|5. watercolor full color underpainting|
The one color grisaille(numbers 1 and 2) is a method where you place all your information down first. Gradually you move away deciding which pieces of information needs to be there and which to throw out. In this method, you are not reading off the color, instead it is the value that informs you.
The two color underpainting (number 3) is a kind of blocking in method. Here you choose the dominant color, first in sun and then shadow. Gradually you refine the shapes and colors. Details come last. I feel I resonate to this method more.
In my pastels I do a full color underpaintings (numbers 4 and 5) and play fully off the colors on the paper. The colors chosen are what I see as the "skeleton of the landscape." The skeleton underpaintings work well in plein air.
What's your underpainting method?