Great portraiture skills, man. The shading for the uniform is masterful, as are the textures for the military cap.
I do find the area above the lip distractingly odd, though. It looks like it's shaded a little too dark in comparison with the rest of the skin tone (please forgive me if this was how it appeared in the reference, if you used one.)
That's all I'm going to say on the critique side, though. Your way of drawing portraits is immense, I've seen your other works and it seems you possess some real talent.
Because I'm still a newb at art, I have to ask: what grades of pencil did you use? I'm looking to improve in the future. :D
Keep it up!
4.5 / 5