Looping pattern from the Minimalism course
The goal was to make something that looks like the wall that stops you from entering a mythic keystone in world of warcraft until the countdown is finished (see https://www.youtube.com/watch?v=UgO553duiJI&t=0s).
Jonathan Lampel gave me a tip to make the musgrave less square and more soft
I don't know how that looks in WoW, but for sure it has that feel you're entering into a portal and into another place. So I'd say goal accomplished.