Arthur,
Nice work!
I like the flesh tones and the dark feel to the figure. I can tell that you liked the way he came together, your painting shows that. I would offer two things that next time you look at trying. First, where you have two planes come together, like at the leather strap against the coat, take just a touch of raw umber and outline the strap. It will give the shadow and seperation that will make the figure jump to life. If you look real hard at a color photo, you can see where the planes come together that there is the tiniest of lines of dark seperation...a thined line of raw umber will help achieve that effect.
Second, when you highlight, even if you want a "dark, cold feel" try to be a bit bolder with the highlights. This will help bring out the drama of the poise and also give a contrast to the drak shadowing effect. Try to remember, as you paint, contrast, contrast, contrast (Bob Knee, Jr , my mentor, taught me that).
Other than that, Arthur, well done...
Thanks for sharing
Patrick