If I were a hero, I'd be Martin Luther (Part 4114)....

 Superhero Anydays

Don't know the artist, but here's a bunch of DC's heroes.

Supergirl, Green Lantern, Starfire

Martian Manhunter, Aquaman, Batman, The Atom, Superman, Red Tornado, Hawkgirl

Zatanna, Wonder Woman, Batgirl, Vixen

The Flash, Nightwing, Black Canary, Green Arrow, Robin

*********************

And today we also have a Cyborg cosplayers. 

POLT