I do like playing with shadows especially when it creates and adds to a portrait. The drama and mystery around shadows and darkness that it can bring to an image add interest and intrigue allowing the portrait to stand out.

Take this portrait for example, if it was completely lit and you could see her outfit and a hair at the back of the head, would it have the same interest or do you feel that the added shadows bring something extra?

Utilising shadows in a portrait

Utilising shadows in a portrait