On the black seamless background I put one light placed behind the subject. This helps to separate the subject from the background. Later in Photoshop I substitute one of the many textured backgrounds I have. Using the texture layer in Overlay mode allows the texture to blend with the spot lighting in the original background.
This is a rather simple lighting setup, but it creates a powerfully dramatic effect on the subject.
|For this shot I used a ring light on the subject instead of the soft box. I also added a low hair light from directly behind .|