These are a few materials I've made while experimenting and looking at guides.
The Aged Wood Planks are my take on Wes McDermott's material of the same name. The tutorial can be found here:
https://tutorials.allegorithmic.com/courses/01229d3d82a6bde31c283e1a7a244765
The Hexagon Wall was an exercise to see how well I could replicate the reference, but I also added some silver options. Enrico Tammekänd's Hexagon Tiles gave me a start towards the correct ratio for regular hexagons in Designer. That material is available here:
https://cubebrush.co/enthelitystudios/products/vhyomg
Additionally, this material's mask generation is based on Qu Bin's usage of Flood Fill to Position. Their breakdown can be found here:
https://tutorials.allegorithmic.com/courses/c0cfec6d04eb6ee8768207b270d435fd
The Stained Glass material was my first experience working with refraction. The trim is derived from my Branch Generator, and my Flood Fill to Colors+ node controls the color scheme.