Shake, Shake, Shake, Selina

This started off much differently. The initial sketch was drawn with realistic proportions and features. Would have looked nice, but as I kept working on it, Ivy and Harley (especially) wound up moving away from the viewer too much. So when I took it back to the beginning, I wound up changing not only the composition, but the style as well.
Still wanting to give myself a challenge by working outside of my usual niche, I decided to try it with little to no outlines. Just overlapping shapes and colors to define the forms.

Selina Kyle, Pamela Isley, Harley Quinzel, with Joker's hyenas Bud and Lou at either end of the conga line.

Probably should have mentioned this from the beginning, but this fun piece was largely inspired by and her enthusiastic championing of the character. Catwoman and Ivy are just along for the ride.
But go check out ~RedxHarlxoxo's cosplay photos and try to tell me she doesn't have the character down pat! I'm sure I'll do some Harley art some day depicting her more contemporary attire…!