I've had a few other distractions so I hadn't worked on this in about two weeks, but was able to get back to it earlier today. I believe I'm pretty close to being done with this, but I'm still not happy with the hair. I believe it needs more texture, primarily in the area from the upper left highlight over towards the right side. I'm also feeling that his left cheek (to our right) may be too "sunken" - I'll need to examine the photo reference better. I'll be attending the Ohio Civil War Collectors Show in Mansfield, OH this weekend, so between displaying it there, and here online, I'll get a better chance to study it more objectively. My primary concern is over-working and over "refining" it -- my tendency towards too much detail and nitpicking -- so I want to make sure I stop before that happens.