I had done this a little while ago and was never really quite happy with it but not knowing exctly why.

My friend said, "the face is too flat, the shoulder cut off too sharply"
She said, "why not work back into it?"
I said, "naw...."
Later I thought about what she said, and gave it a second thought.
And then today I had some leftover paint...

There is a little glare so the colour looks a bit faded towards the top, but I think this is quite an improvement.
The best kind of friend is one who can open to you a new way of seeing. Suddenly now I see a greater possibility with these faces.
Thanks, Seka!
:)