Charles is a friend's cat, and this was a birthday gift for her. Charles is aloof and discerning. He's an outdoor cat and often wants to be on the other side of a shut door.
I took an image my friend had posted to Facebook and made this in Adobe Illustrator by free-tracing the outline, and then filling in the details until it looked close enough to the photograph. Charles was easy because he's monotone without much variation. His signature characteristic is his whiskers.