The 9x12 inch canvas with carbon tracing.
Looks pretty gruesome at this stage, doesn't it!

The 9x12 inch canvas with acrylic underpainting.
This is ready to take oils for touchup and blending.  

The finished 9x12 inch canvas.

I feel that I did not show enough intermediate steps in Nancy's painting,so we'll do a series of Jason, the cook where Nancy works.

The original cropped head shot.

The 9x12 inch canvas with tracing and a little bit of acrylic under-painting. Notice the splotches in the green background where the canvas manufacturer put too much or too little gesso on the canvas. I painted around the carbon paper lines to make them stand out better in this scan.

Two hours later, still acrylics. Looking better!
This is ready to take oils for touchup and blending.

This is the finished painting. Perhaps it is not what a pro could do, but it's not too bad for a regular person like you and me.