Catwoman in her Batman the Animated Series costume head-and-bust-and-torso sketch done for my pal Carli’s copy of The Vitruvian Underground. She’s an amazing artist so you should check out her work and follow her and all that stalkery goodness: http://love-the-rain.deviantart.com/
I had offered free sketches to the first ten people to buy a copy and those slots have been filled. I did additional ones for those who bought more than one copy, so thank you to those who did!
You can read a good chunk of the book here: http://www.vitruvianunderground.com/index/webcomic.html
And buy it here: http://clubchevon.bigcartel.com/