What wrong with material?

Hi:) Thanks all for reply! So, first i do material by this tutorial Photorealistic Character | Unreal Engine Documentation

but… it uselesssbecause;

When i find Scanned 3D People Pack in Characters - UE Marketplace

i download it and learn how made master material in this project and make this

I think Epic need to update the tutorial because it`s not clear and not give the real photorealistic