As a starter, I’d like to introduce an aspect most wood materials are missing: Anisotropy! While looking at wood tables, I noticed that the wood has a (slight) anisotropic effect. So, I made marbled wood using procedural textures, and a combination between a velvet shader and an anisotropic shader.
I used the color from a noise texture to distort other noise textures and to provide the tangents for the anisotropic shader. (Subtract (.5, .5, .5), then Add to geometry ==> location for color, add to geometry ==> normal for tangent)
Bonus: Dynamic Wear node group inspired by the Stencil kit
MaterialOrb.blend (941 KB)