I found an example of a simple set up painted by Qiang Huang and set up my own similar setup.
Here is the value step of my painting. I must give myself more information at this stage than Qiang would because I'm not as experienced in oil. Someday, this step should go much more quickly. By the way, this under painting or grisaille is the technique I used when working in colored pencil many years ago. See the example.