That's Wonder Woman as 'Janet', Superman as 'Brad', Robin as 'Columbia', Harley Quinn as 'Magenta', Joker as 'Riff Raff', and Batman as 'Dr. Frank-N-Furter'. Here is what the artist had to say about it:
Here's a piece that I did late last year for a Rocky Horror live show group. It’s an homage to the original movie poster showing the cast with a superhero twist, and was used as part of a promo for a special show. I also did the chorus line of legs, but as a separate piece so it could be moved wherever the printer wanted. “He’s the hero, oh yes, the hero."OK... so who would you guys have play the wheelchair-bound 'Dr. Scott', greaser 'Eddie', and the monster himself 'Rocky'? Tell us in the comments section below.