While everything is still considered the best pairs of Joker and Harley Quinn, Batman and ̶R̶o̶b̶i̶n̶ Catwoman. I think that Batman and Joker look much more organic together (and this is not what you thought!)
My Character Drawing
Work Process:
Step 1
Step 2
Step 3
Step 4
Step 5
Step 6
Done!