https://www.dndspeak.com/2023/02/22/100-memorable-npc-appearances/
The goal of this list is to provide a quick prompt that is both detailed enough to easily spark the GM’s imagination and also vague enough to leave them enough room for improvisation. Part of this prompt is what I call the Face, or ‘What the other are noticing when encountering this NPC’. It is not limited to visual, as it includes a peculiar look, a specific way of dressing, but also how they speak or move, and what do they “feel like” overall. This appearance should be striking enough so that this character will be remembered with it alone.