Substance Studies - Creating Materials for my Interior Environment

These are quite simple materials I created in Designer just to get some useful knowledge about it, some have more effort than others.
These materials were intended for my Interior Environment Module which I work in conjunction with Substance Painter for individual assets.
All rendered in marmoset of course.
Feedback is appreciated!

Slightly stylised wood material.

Slightly stylised wood material.

I was intended to create a clay/dirt kind of texture, but got carried away and developed it into a slightly saturated soaked dirt material.

I was intended to create a clay/dirt kind of texture, but got carried away and developed it into a slightly saturated soaked dirt material.

Simple rock material

Simple rock material

Testing out procedural materials (Rather simple screw and spline)

Testing out procedural materials (Rather simple screw and spline)

Clean version of procedural, no splines or screws.

Clean version of procedural, no splines or screws.