Usually sickly pale, grey, decayed green
Usually grey (if any)
Twisted and malformed
The Damned were the physical embodiments of the lost souls of vile beings, that were doomed to suffer eternally in the bizarre depths of the Abyss. Though they were a highly diverse group, they usually resembled twisted and malformed sentients. It was because of their nature as the miserable remnants of wicked people.
The appearance of the Damned as misshapen, monstrous versions of regular sentient beings was partially inspired by the monsters from Silent Hill video game series. The idea of designing them around the Seven Deadly Vices came along with the idea of the Seven Daemons, however, and the concept was not prompted by them.