Low Key

1st Low Key setting: 

This is an example of a low key photo because of the black background and only one light on the subject.

2nd Low Key setting: 

This photograph has a halo effect because the 2nd light behind the subject doesn't have the honeycomb over it.

3rd Low Key setting:

 This image has the spotlight effect because the honeycomb is placed back onto the light and the light is facing the black backdrop giving the spotlight effect.

4th Low Key setting:

This photograph not only has the halo effect but it also has a reflector we used a white cardboard piece giving a softer reflection on the subject.