When choosing or editing a gaming or anime PFP, keep your subject’s silhouette...

https://highstylife.com/how-do-i-turn-a-detailed-game-artwork-into-a-clean-profile-icon/

When choosing or editing a gaming or anime PFP, keep your subject’s silhouette clear and crop tightly around the face. Use a simple background and avoid text so your icon stays recognizable even super small