Objective: Have light directly over the shoulder of the camera
The light is head on and making his face more bright, also is taking away any facial features that are unpleasant.
Objective: Have light 45 degrees to the right of camera
In this one, The lighting is to the right and it lights the left side of his face and creates a shadow on the right side
Objective: Have light 45 degrees to the left of the camera
In this photo, the light is to the left and it casts a shadow on the left side of his face
Objective: Have light 180 degrees to the subjects left
In this one, the light is in the back of him and a quarter of his face is lit up, while the rest of his face is in the dark
Objective: Have the light directly on the backdrop
He is completely dark from the light being on the backdrop. No light is on the front part of him, only the back of him.