There isn’t much I can say about this yohen temmoku style chawan other than what crazy pattern. The pattern is vivid, multi-colored with a sheen of gold across the surface which has its own topography which appeals to the touch and the eye. This chawan was made by Yamamoto Noriyuki, a potter I know almost nothing about, the pictures are a better narrator then I could be.
You can see more of this chawan over on my Trocadero marketplace;
https://www.trocadero.com/stores/albedo3studio/items/1507990/WILD-YOHEN-CHAWAN-BY-YAMAMOTO-NORIYUKI