Once you are happy with the general direction, you can clean up your loose sketch by doing an over-lay. If you are working on paper, you can photocopy
your loose sketch, and just trace over it with a new sheet. This step is much easier on the computer - simply make a new layer in painter or photoshop,
and just trace over your rough. Since we're going to be painting this piece, we don't need the line drawing to be super detailed; we will add those once we
start painting. At this stage, make sure you define your major shapes somewhat clearly. These shapes will serve as your silhouette guides when you start
to apply paint.