Hi ,you should look at your skin textures in the shading tab and adust the metalicity and specular values on the principled BSDF shaders that were created for all of your materials upon import.
I recently switched to an Iclone to Blender pipeline
where I will be creating all of my Avatar animation in iclone
with custom Characters& accesories (body & facial) and rendering in Blender 2.8x via alembic export to render in EEVEE.
The reality is that any pre-textured assets, imported into Blender ,will require material adjustments such as manually setting up subsurface scattering etc.
Anyone planning to use Blender, as an external rendering solution for Iclone, should be prepared to learn the Blender Shader node editor for best results.