black, with its absence of colour, is often associated with mystery and power. Black can often be intimidating and give off an ore of power/control. black is also used for classiness and sophistication - a staple colour in most of our wardrobes aswell.
"Though this picture is simple. I have done black and white photography for many years and my favorite element of design is contrast. The contrast in this photo takes it from simple to interesting." I think this a fine example of contrast/black and white.