Thanka painting is traditional art form which dates back to the around the 7th Century. It was originally based on Indian religious art, but it has also incorportated Chinese, Nepalese and Kashmiri styles. Many Thangka paintings feature the Buddha or other dieties or demons.
Thangka is very precise in it the propotions of figures. Those studying this art form spend three years learning these proportions before they even pick up a paint brush.
I got to join a group of students from my old university as they skipped the three year introduction, and got down to painting. The outline of the picture had already been drawn, as is the tradition. The painting deliberately omitted a deity, as it would bring bad luck to paint such a piece incorrectly. This was the result of my 5 hours of effort.