Here are a few examples of how other artists apply the technique...using the direct method: Nelson Shanks and Teresa Oaxaca...using the indirect method: Jacob Collins and David Gray.
For my portrait of Kirk, I used a burnt umber pick-out technique. I enlarged my drawing of Kirk to the final size (18x24") using a photocopier. Using a piece of tracing paper coated with graphite, I traced the image onto my canvas, reiterated the tracing with pencil, then applied a sealant. Next, I laid down a mid-value stain of burnt umber diluted with OMS. I picked out the lights with a rag, Q-tips (plain or dipped in OMS), and a kneaded eraser, and laid more paint in for the darks. Not worried about the background at this point.
Here is my final underpainting. That front arm/hand is still giving me trouble, so I'm working through it with some additional drawings. Next step is the final painting...
|Portrait of Kirk (underpainting), 18x24", oil on linen board|