A apprentice of the clay sculptor Song Changfeng colors sculptures at Song's studio in Botou, North China's Hebei province, Oct 24, 2013. Song is the fourth generation of making the Sanchizhai clay sculptures, which could date back to the late Qing dynasty (1644-1911). In 2004, he built this studio and started to train apprentices so as to pass down the traditional skill. [Photo/Xinhua]