Hi, my muse (husband) and the sketch. I appreciate the proportion hand out provided. It definitely helped with my placement and sizing of features. The top of head (vs. top of face) was something I figured out quickly :-)
I usually just jump right into the painting of his face, starting at the nose and working out. I found the drawing of him a good exercise, even if it pains me not to work in the shadows to create the feature definition.