It cost Kong Hooksh a lot of effort, experiments and resources to improve several parameters for the production of the bowl at once. Development of the correct anatomical shape of the human face, creation of detailed facial expressions of the eyes, improvement of the technology of applying luminous pigments, standardization of several stages of manual refinement of color elements. The bowl is made in several stages, and if you put all the processes together, then on average about three working days are spent on one. Everything in order for everyone to pick up. 
Craftsmen create each cup by hand. Thanks to this, the mask, facial expressions and a stern look are as detailed as possible.