In 2018, the mother-daughter duo set up an art training center to provide modeling lessons for the elderly.

"Modeling is good exercise for the elderly, and it can greatly boost their confidence and rejuvenate their passion for life," Wang said. "We older models demonstrate not the clothes but ourselves."

Wang shared her secret for keeping fit.

"Keep up regular exercise and eat every meal properly with only 70 percent full," she said.

With China experiencing a shift toward an older population on average, Wang said there is a huge demand for the middle-aged and senior models.

"I will continue to work in this field to help older Chinese people become more beautiful," she said.