Thanks Terri - you are spot on. I still don't have the sides quite at the right angles yet, but adjustments will have to wait until the weekend as I'm writing job applications this week
It's amazing what a difference as subtle as that can make to the feeling of a portrait. This is quite a learning experience. I am definitely going to do a bunch more copies after this one. I have a whole book of Sargent portrait drawings, and a good sized giclee print of Velasquez's "Pope Innocent X" to get my teeth into when I've finished a few of those. Can't wait!