I recently watched a lecture given by potter extraordinaire, Adam Field.  Among many other experiences, he spent a number of months in Korea learning how to make very large, traditional fermentation jars called Onggi.  This is a link to a time lapse video showing Adam working on an onggi,  check it out!
 Adam Fields onggi

Adam has also uploaded a selection of his photographs on Instagram that, among other things (ie family shots), encompass unique images of patterns occurring in nature.
https://instagram.com/adamfieldpottery