Here are some mockups I made a while ago for a horror-themed multiplayer game I was involved in.

This is the title screen (with the logo and studio name replaced with placeholder text). You'll notice I was attempting to emulate the look and feel of horror comics from the 50s and 60s.

On the Role Selection screen, the player gets to pick what team they want to be on, the "Cast" or the "Legend", and they do so by selecting the left or right side of the screen before being allowed to continue to the next screen.

As you can see, I used stock images of the Sims characters in the mockup. Those were supposed to be replaced by models of the Cast and Legend characters from the game.