So Kevin Smith has a new podcast called 'Fat Man on Batman' where each week he interviews someone who has been in some way involved with Batman (so far mainly sticking to Batman Animated.
So I was listening to the show featuring Tara Strong (the voice of Batgirl amongst a host of other cartoons) and then followed it with the show featuring Arleen Sorkin (the original voice and inspiration for Harley Quinn), I was doodling at the sam time and came up with this.