Almost there. I've decided This Doomsday, like the live action representation, will be buck naked. And since he was created, he will have no reproductive/ excrement features (nipples, genitals, a-hole).
In the Doomsday story arc, it made sense why he had on some clothing. He was put in it and sent off into space. But every version after that story, he has clothes (it's comics, kids I know). But he's a monster. And I don't think a monster would care if his balls (if he had any) were swinging around while he kills everything in his way.