To those of us who want to be professionals:
I think the underpainting controversy has been propetuated by those of us who are struggling to learn and are eagerly seeking ways to improve. The truth is, that we should not try to immitate someone else's style. If you like Karen's approach, try it with a painting. If you like Michael's, Bill's, Marvin's, Peggy's, Chris', (and whoever I may have missed in this post my deepest apologies), then try them. Use what works for you and throw out the rest. Practice makes perfect and only by trying different methods will we find what works for each of us. Another great way to learn, which has been posted several times, is copying old master paintings. Practice, practice, practice, and never be satisfied. Maybe one day we'll will be the ones having discussions on which way is best!
Renee Price