Number of Unique Materials and Material Instances: 22
Number of Textures: 147
Textures Resolution: 2k
The Master material comes with tesselation turned off and Scattering Turned on, you can turn them on/off from the master material properties.
Note: Support for earlier versions of Unreal will be coming in the future.
If you want the Materials to behave as I have shown, please consider using an HDRI with a skylight or reflection capture.
I'd love to see what you were able to create with these materials so feel free to email me with your work.