Finished the portrait exercise I set out to do. I had forgotton how painstaking portraiture is...unlike painting landscapes, stillifes or even pets, there is no room for error. Unless you're Picasso, the nose, eyes and ears, etc. have to end up exactly where they should be, and that requires a level of precision I just don't enjoy. Bottom line - I learned that I really don't want to make a business of doing people portraits. Despite the problems, however, this was a useful exercise.