Hell Eternal

Weapon skins from Hell Eternal are available on Elite or Nightmare mode, depending on the weapon. They can also be purchased as a Weapon Mould in the item store. Outfit worn is the Infernal Finery from the Master Planner achievement.

On Nightmare mode, there are four unique skins; the Creepy Doll Elementalism focus, Bone-Saw blade, Misery pistols and Grimoire of Foul Gods blood magic focus.

Thank you Shaun2406 for the screenshots.