I took the base character as a basis and began to change facial features and facial texture. I also use skinen to add details to the face.

Until I stop working with the body at this stage

I decided to experiment with different techniques for creating a character.
I slightly modified the prevus version, which I made based on the basic shape

Then I decided to use the headshot plugin, as well as the service https://generated.photos/

And I also found a free human head scan on the Internet. And of course I decided to work with him and 3D wrap technology.

Then I transferred the textures, corrected them, corrected the body. As a result, I got this character. I also added some extra detailing with skingen.
And yes! I know. what will I do with all the 3 characters I have. I think it will be interesting)))

I started creating hair, while for the first character, I think that one of the three I will leave bald, the other I will also do the hair. 
I made hair in Maya using xgen, then exported everything to UE4