Not sure where this is going at all. I spent the day working on some other jazz in blender but I took a little break to try out some sketching techniques I was reading about. Something along the lines of getting a likeness using only primitive shapes. A very difficult task but something I'd like to continue on with. My problem is that I inevitably wind up sketching in details and values. Not really the purpose of the exercise but there you go. I'll give it another shot tomorrow. Even if I have to restrict myself to building some primitive geometry in blender and working on it that way, actually that's not such a bad idea.
I'm not feeling the likeness of this one at all. I think that the only tie between this painting and him is the goatee. Possibly if I get his pose correct when I move onto the body sketch that will help things along also but facially, at this point... Might just have to chalk this one up to experience. There is one thing to be said for this painting. It's not going to look like a caricature of Mick Jagger. A lot of my sketches had that Mick Jagger look to them.