Real life Mary Jane
Harley Quinn and Female Joker
The female Joker- it could work, Helena Bonham Carter of course.
The Joker - The Dark Knight Returns cosplay by smile-xvillainco on DeviantArt
Batman. Curated by Suburban Fandom, NYC Tri-State Fan Events: http://yonkersfun.com/category/fandom/
Harley Quinn Cosplay at 2017 Sydney Supanova by rbompro1
Arkham Origins Joker Cosplay Preview Comparison by AlexWorks.deviantart.com
Harley Quinnby @evviart