This is OLD, but I found it a bit ago and wanted a decent scan of it. This is an inked version of a rough sketch I did back in 1999/2000. The inking process was done on the textured side of a slip of acetate.

Acetate is a clear, mostly see-through plastic, similar to mylar, or as most folks might recognize it as the stuff they painted animation cells on. This was a practice on refining my inking technique and how it different in weight and feel from inking on paper.

Let me tell you there is a huge difference between inking on paper and inking on acetate. On acetate you might think you have a nice, dark, solid line... until you hold it up to the light and realize your ink didn't "stick" but rather it "spread" instead - aaaaand now it looks grey when back-lite.