Your selective coloring is so subtle thats no problem. While your lighting is pretty good Id prefer to see your shooting angle taken more from straight on instead of you looking up into the camera. The dark mood of the pic would be better off with the subject having the power rather than the photographer. By the way, if you used lightning as your light source, it must have been a small one and far away. ahahahaha
I used a black backdrop and I had a single sb-600 camera right about one foot away from my face. The room was actually completely lit, I had the lights on but I underexposed all of the ambient light by using a small aperture (f11 I think) and a shutter of 1/200s.