One of the parts if the story and how Hell came to exist was due to two brothers who stumbled into Limbo. They were of course met by Limbo himself who forced them to play one of his games. In doing so they lead to the creation into the nine rings of Hell.
One of the things that make Limbo, Limbo. Is that he makes you play a game based on your personality. The brothers were both of a competitive nature. Hence the game being played. But an idea that Rhea thought of was that throughout the game the two brothers would change. They would turn ugly like their personalities.
This is Rhea‘s digital concept on what the brother’s would look like before and after. I really loved these designs and thought idea helped develop the storyline more. Below are her concepts.