Over the holiday break, I worked on another scratchboard. I knew I wanted it to be an owl, so I searched around for owl pictures and came across this, which fit the image in my head:
First, I sketched the owl with pencil and paper, paying attention to important outlines, but only trying to get a broad sense for shading in other areas.
After this, I transferred the drawing to the scratchboard by placing it on top of the scratchboard and drawing the outline of important areas in pen. This made a soft impression in the scratchboard and gave me a sense of where to draw the dominant lines. After this, I looked at the original picture and started scratching, doing the lightest parts first. Here is the final product: