When picking or editing a gaming or anime PFP, keep the face cropped tight and...

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

When picking or editing a gaming or anime PFP, keep the face cropped tight and use a clear silhouette so it reads well at small sizes. Avoid busy backgrounds or text that clutter the icon