I made this illustration for the New England TB Symposium. It was used for their program and posters as well as mugs and bags.
Initially, I drew a pattern of abstract shapes, but the client wanted me to show the drugs used to treat TB. The final sketch fused the cabinet with the head and shoulders profile.
I used my trimmed Pentel brush pen for the line work. It was getting low on ink which allows me to create a more textural line.
Below is the illo in a few stages of development.