The Justice League line is by Doubledealer.

Check out his website!

Batman

Batman uses a BTAS torso, TNBA cape arms and legs. The head is a BTAS head with the top part of a Batman Beyond head.

Green Lantern

Green Lantern is a BTAS batman body with a Super Sculpey head.

Hawkgirl

Hawkgirl is a Harley Quinn body, with a Poison Ivy head and right hand. The wings were from a Toybiz Hawkman cut thinner. Costume details by epoxy putty.

Martian Manhunter

Martian Manhunter is a Superman Torso with lengthened Detective Bats legs, and forearms. The head is Super Sculpey and costume details were made with epoxy putty.

Wonder Woman

Wonder Woman is a Princess What's-her-name with the limbs repositioned and epoxy putty for details. The head is Super Sculpey.