Lighting adds dramatic effect to your photographs.
Usually you want the light source behind you when shooting photographs.
"Backlighting" occurs when the light source is in front of the lens, creating dark silhouettes.
"Side-lighting" is effective in communicating strong emotion.
"Floor-lighting" is a technique of placing a single light source in front of and below the subject to create suspense and mystery.
Include two different types of lighting examples in your photo montage.