Once the black accents are down, add more white with the negative stencil to create depth. Hold the stencil and move it around, using portions of it to make varying licks in the interior of each flame. Like the black accents, these should be small, subtle, and evenly dispersed. Aspiring pyros need to be patient and understand that practice will improve their technique. Onlookers seemed to think our flames turned out trick, so we must have done something right. Maybe next time we'll actually use a car.