Today I measured the photograph to help me make adjustments and repaint David's head. I used cobalt blue, cad yellow, and paine's grey for his forehead after discovering that lightening his eyes to green made an impression on me. Though the coloring makes him seem older, I think, it's better than the color of the last stage of the painting. The intensity of his expression is off--he is much friendlier-looking in the photo than in the portrait.