The top photograph is the edited version, and the bottom is the original.

To edit the photograph, I firstly cropped the boundaries so that composition of the photograph fits in well with the rule of thirds.  I secondly,  changed the photograph to black and white by decreasing the saturation to nothing.  I did this because traditionally, portrait photographs were taken in black and white.  Finally, I adjusted the contrast using the levels tool.  By doing this, I enhanced the dark areas and enhanced the bright areas.  To compliment both of these factors I then adjusted the grey scale to create a balance between the two sides of light.