Subway floor style trimsheet. I find terrazzo and similar type of materials that you find often here in Stockholm fascinating. They can take on so many expressions and age and wear so differently. So I took some references one day while at the station of "Medborgarplatsen" and went to work. I also find it pretty fun to break down a material into multiple materials. That way I can just colorID map the resulting sheet and work on whatever bits I find interesting at the time, while keeping individual graphs clean and eays to use.
It also allows me to have a lot of materials I can reuse for other projects.