Upgrade Your Skyrim Faces: A Guide to High Poly Head v1.4 (SE)
If you want NPCs to use these heads, you will need a patch, such as NVICO or similar high-poly NPC overhauls. Conclusion High_Poly_Head_v1.4 (SE)
With more vertices, skin textures interact better with complex ENB lighting. Upgrade Your Skyrim Faces: A Guide to High Poly Head v1
Note: If you are installing via Nolvus, place the downloaded zipped file directly into Nolvus/Cache/Downloads before running the installer. Troubleshooting & Tips you will need a patch