Ji Huailong, 37, was polishing the ice sculpture carefully. [Photo by Zou Hong/China Daily]

Ji says the work represents harmony between human beings and nature. The logo of the Olympic Rings on the sculpture reflects the couple's support for Beijing and Zhangjiakou city's joint bidding to host 2022 Winter Olympics.

"I like ice sculpture very much. It will have various visual effects under lights. It's cold and tiring work to make ice sculptures, but I hope more youngsters will learn it and carry the craft on," says Ji, who has been an ice artist for two decades.

Three French students from the Central Academy of Fine Arts also joined the contest, but didn't win prizes. Although they've made sculptures in wood and other materials before, it's their first time to work in ice.

"It's interesting and funny to be a part of it. The atmosphere is very good, and participants help each other. I've learned something new from those with high-level skills," says Jules Bernagaud, 23. He worked with a Chinese partner and finished an ice work featuring a curved moon surrounded by stars.