Make metahuman from mesh.
Here’s the 
full free tutorial on cloning yourself as a 3D Metahuman:star: avatar within Unreal Engine.
Scan yourself with a 3D scanner and import the mesh to Epic Unreal Engine Metahuman Creator software.
You’ll get the whole process.
PLEASE SUBSCRIBE TO MY CHANNEL TO SUPPORT MY EFFORT SHARING TUTORIAL 
00:00 Introduction
00:14 Steps to create a Metahuman from a 3D scan
01:00 3D Scan human face to make metahuman mesh
01:58 How to improve the 3D scan in Blender to make metahuman
03:46 How to import a mesh in metahuman unreal engine
08:04 How to custom metahuman in Metahuman Creator
Discover my channel : https://www.youtube.com/channel/UCKF7_ChNH9vUAg_v9j23viw
https://dev.epicgames.com/community/learning/tutorials/2wxv/unreal-engine-3d-scan-face-and-import-in-metahuman-creator