With this photo I have used the light at the back of the head which creates a glow infront of the person that makes a good photo. The lighting in this photo looks good because it shows the sitter in a flattering, warm light
With this photo I have used two cameras at either side and used a peice of polystyrene to reflect the light onto him which lightens the picture up. I like the shadows in this portrait.
With this photo I have had the person face sideways from the light that creates a darker side to his face to make the person look dark and suspicious. In this portrait the light is too strong this will distort the features.
With this photo I have had the person sit down and have the light flash on his face to create a suddon bright flash on the face.