Step-by-Step (continued)
Step 3: Fill in the outlines

Next, I filled in the outlines, using a fine black pen and a Marvy "Le Plume" felt-tipped brush marker. Here's a scan I made as I was part of the way through.

And here's the completed quote, shown at the full size of the original sketch.
I wasn't unhappy with the letters at this point, but they were a little rough. I planned to make a poster and a T-shirt design out of this project, and I knew that if I just blew these letters up on a copier or my scanner, I would lose resolution . So, on to the next step...
Next step