Working on Ed's portrait

I spent 2 hours the first day on Ed's portrait. I think I painted and wiped it out at least 4 times. I was painting from life --the photo is just to give you an idea of what he looked like, but it's not exactly taken from the same position I was painting. Still avoiding the photo, I worked on the painting today. I can see I need to do next...

Ed is a painter whose work can be seen at www.bearmiller.blogspot.com