I just want to show y'all my progress of default replacement for head meshes. I'm planning to call it "HQ Heads".
I really wanted to post a testing version of this mod first, however, my life keeps getting crazier so I at least wanted to put this here while I try to move to a new house, in case I don't make it in one piece

I apparently started this project in 2020 after seeing it was possible on Kurasoberina's blog, but no such mod was available for public. Kept working on it on-n-off, took loooong breaks due to my health. So the result is a laughable achievement for such a long time.

Anyhoo, mod details:
I remeshed the default face and scalp meshes to make them look nicer, higher polycount but not too high-poly.
Adjusted the UV map so that the textures won't stretch as much.
Worst part was weight-painting with the vertex-bone count limitations ofc.
Also modeled a new teeth mesh from scratch, doesn't look great yet but I'm also planning to add teeth sliders for it.
There's brand new eyeballs too but they'll be optional.
Majority of the facial sliders are working fine, I think all I need to do now is few more corrections b4 I can share the testing.

Very interesting, and that Xavier isn't bad, I recognized him. Will be watching your progress