When picking or editing a gaming or anime PFP, keep your character's silhouette...

https://purepfp.com/why-bold-game-characters-remain-recognisable-in-tiny-profile-icons/

When picking or editing a gaming or anime PFP, keep your character's silhouette clear and simple. Crop close to the face so details show up even small and circular. Avoid busy backgrounds and text—they get lost or cluttered