Bronze Vessels workshop during Western Zhou dynasty

Western Zhou dynasty (11th-8th Century B.C) was the golden age in Chinese bronze vessels development, bronze workshops were one of the most important installment to the Zhou's imperial court. My illustration here is depicting two bronze masters, most likely to be father and son, extracting a bronze couldron(Ding:鼎) from the ceramic molds.
I have also draw a simplified diagram of bronze vessel mold casting workflow, please let me know if you have any feedback on this. Thank you!