Uh, I'm still planning to make a comic. Here is a sketch of one scene.
Abstract. The little rabbit brothers were born in a wonderful star world to a beautiful rabbit mother goddess. But somehow, a evil creature made its way into their star world. She pretended to be the mother of naive rabbits and tricked them. She made the rabbits taste rot, rust and decay. And she dragged them with her — into the swampy antiworld, from which the rabbits will now have to escape.