unfinished johnlock

I found this in my notebook yesterday. Actually this was the first drawing I made of Johnlock, right after watching series 1 and googling MF and founding he was in 'The Voorman Problem' looking all British and gentleman and UNF all my kinks right there- So,for this one I wanted to try PS because of textures but the muse of coloring is refusing me badly in this one. I'm just unable to color, I guess I shall keep trying ><