Tattoo Wing: Not a medical drawing. Just a girl with a tattoo. People often get tattoos to tell the world that they're a "badass" (among other things). But if you already are an obvious "badass" (with horns, talons, and wings), would you get a tattoo to tell the world that you can be a nice person too?
My first drawing done using "real" artist tools like India ink, calligraphy pens, and even a brush. I even spilled my first jar of ink on the table too during this one. The tattoo on her wing is from the 16th Century painting by Yi Am called "Puppies, Birds, and Blossoms," Choson Dynasty (Korea).

"I'm not bad, I'm just drawn that
way."
-- Jessica Rabbit.