Heya! Welcome to the forums. I really like the background you made for Gavin. Nice and detailed, but colored distinctly so everything is clear.
The problem with ears is that they’re so small in non-closeup pictures. If you added more details/scars, the end result might look a bit messy from further away.
If you really want scars or battle damage for your characters, though, look no further than the Zombie-categories. This one has a scar from Head -> Zombie. I have also found success with this Insignia item, which I masked to the ear here.
If you use them, you might want to fiddle a bit with the colors and transparencies, too, so that the scars blend a bit better into the surrounding skin.
