 Although early in their career they shared both writing and art duties in their work, their collaboration evolved to the point where, after writing plots together, Joshua primarily scripts the dialogue, and Jonathan does all the art.The Lunas prefer to concentrate on female characters such as Spider-Woman, Red Sonja and their own creations, "Ultra", "Girls" and "The Sword", explaining, "Women are beautiful, smart, and strong, and we like to work on characters like that.It’s also fun to see women do amazing things like jump over buildings."