https://wccftech.com/the-witcher-3-character-faces-improved/

A new version of The Witcher 3 Character faces Improved mod has been released this week, introducing even more enhancements to both NPCs and main characters.

The mod introduces significant improvements to detail and resolution to all character faces in the game. The mod also includes improvements for characters found in the Hearts of Stone and Blood and Wine expansions, so they are required for the mod to work properly. You can download the mod from Nexus Mods.