I'm shocked at how great your coplay is!
The background, colors and lights covering the characters show nicely how they are diffrent and unseperable at the same time.
The Joker looks fun too - the make-up and jacket make's me think... "this will be the man with the last laugh on Earth".
Nevertheless your cosplay give's a fine and sexy atmosphere of Harley which can't always be done very convincing by anyone. Congratulations = !!!
At the same time I don't understand one thing... fans/people with rather a lower financial budget can make proper/perfect live-action character make-up, designs and outfits where big companies with lots of money like Warner Brothers, etc. can't/don't want to create movies/ TV series that are good.
Story is one thing but the whole character image is another. For example finding a person that can physiclly "look like" Bane for "The Dark Knight Rises" is possible yet they prefered to make a "original" character and still call him Bane which seems pointless.
I personaly prefer that directors that decide to do a movie about a existing character to copy and not use as reference one's story.