I did the eyes and nose in detail, then applied blue, sienna and raw unmber washes over the cheeks and forehead. I'm afraid I forgot to catch some of the intermediate steps this time. I then used some ultramarine to add volume to the eyes. I'm happy not to have used Payne's Gray for the dark areas. I think using Raw Umber only gives it a gentler expression. Payne's Gray could be too dark sometimes. Soon on eBay.