"Harley's Sketchbook" from Gotham City Sirens #21 (DC, 2011) by Peter Calloway, Andres Guinaldo and Lorenzo Ruggiero
Remember when Harley Quinn was a beloved character? I sometimes think she should never have been 'ported to DC's comic book universe and had stayed in the Animated 'verse forever. Ah well. As for the cutely named Gotham City Sirens, it was basically Gotham Girls played straight (for lack of a better expression), which I'm not sure ever really worked. I mean, what was Catwoman doing with two criminally insane villains, really? Except posing for sexy art, I mean? It was a great, camp relationship in the cartoons, but in the darker, more violent DCU... ehh.