Be weary, at a glance of this video none of the face materials actually use the correct shaders /setup as detailed in the character documentation docs.
The face seems to be missing both a normal map and the micro normals as well as the skin pores.
I can’t be sure, but I do not think the eye even has an occlusion mesh in front, the correct eye geometry, or the tear line mesh. - if they are there they aren’t correctly configured to reflect.
Also, It didn’t seem like the skin was properly reacting to the light with sub surface scattering. Though this video is so minimal that it’s near impossible to tell. (He never panned looking towards the light source).
The end result is not horrible. But it’s not what one is normally after either.
Also. Roughness textures are usually extra trash. The docs make it clear you can get the same result using the built in normal to roughness method. Having roughness packed into a 3 channel texture becomes useless if you refactor the materials correctly.