Forget DAZ-PBR for human skin.
Omni shader are the way to go.
The results are so much more realistic.
A small warning, though:
While DAZ Iray PBR is always to dark on skins, Omni Shader are too bright.
Better edit your diffuse texture maps, by copying and pasting a second layer, switching this layer to multiply and set the layer opacity somewhere between 50 to 80%.

By the way, great hair here. I see potential
I used "Grace Hair" with Linday hair textures and my custom morphs.