The eyes were placed about 1/4" too high in the previous incarnation, so I had to paint out the upper half of his head and start over.    

Even John Singer Sargent, arguably the greatest portrait painter ever, scraped out heads over and over until he achieved what he had in mind, which makes me feel better about having to do so!

In painting portraits you start with a broom and end with a needle - from the general to the specific, and you can't fall in love with any detail until the whole is perfectly proportioned.

I am liking the Mona Lisa pose and tentative smile, although more work still needs to be done before I am happy with this one!