Experiment with and without the silver reflector to get the look you want.
This simple lighting setup is created by strong direct light coming in from one side of the face and it creates what’s called a Low Key look. A black reflector is used to stop light bouncing back onto the face and a silver reflector is used behind the model to punch light back in and add an edge to the face and body. If you didn’t bounce light back in, the left side of the body would disappear into the black background, which can also be a good effect. Experiment with and without the silver reflector to get the look you want.