This was how the scene played out in the recent Secret Wars by Jonathan Hickman and Esad Ribic. The God Doom with a face he is unable to change, despite his ominipotent powers.
But it didn't always look so bad. Here is the original pencil artwork for that page, on sale for $1000.
He kept his nose and he didn't get fangs. And you get to see how some of the stat panel to panel images work as well. Susan didn't go invisible apart from her lips for a panel….