This was a very difficult portrait to make. This is my first attempt, and it looks pretty good, but look at the ears. They are down by brother Dave’s chin. I show the original photograph below to show their true position. And yet the photo looks natural. The drawing does too, except when one looks at the ears.
I tried to puzzle this out in about a dozen sketches, none of which came closer to the photo than my original drawing. The face is foreshortened, tilted back and slightly turned. I need much more practice.