Every now and then, you will need to draw some (literally) dark scenes.

A beginner will be tempted to simply put a dark screen tone over the drawing, but this will make it look dull.

A pro will apply a technique that many professional photographers use to add a dramatic atmosphere to their shots: rim light.

Basically, rim light is a thin stroke of light that outlines the subjects contours, which is caused by a light source almost directly behind it.

Unlike a normal outline (which you should also use to seperate the background from the characters), rim light has a more organic feel to it and accentuates the form of the subject.