I was in the Glenbow Museum sketching the Art of Asia exhibit. I saw this mask, it’s a Japanese Kagura mask. Kagura was initially only for the imperial court, but became a folk tradition over the years. This mask is from Daikaigura (I believe) where priests would help peasants drive evil spirits away. The sketch is a Pilot marker sketch, I think it took about 15 minutes. It struck me how much it looks like batman and is such a studied expression of rage.