Here is the face I did recently to try my hands on Unreal engine.
The goal was to get a good looking skin, even after super closeup. Something that Lukas Hajka's project inspired me to do.
It's still way off from his level of quality, but is a start. Will be updating my skin knowledge more and more.

For the detailing process, I used texturingxyz multi-channel pack and also an upcoming collection coming very soon

Down below you can find the screenshot of node network and a video, showcasing the skin I made inside UE4

C&C are more than welcome.
Cheers!

Instagram: instagram.com/saurabhjethani/