Art designer Feng Shuxuan touches his first art creation titled The Ow in Zoological and Botanical Garden of Changchun in Changchun, capital of northeast China's Jilin Province, July 11, 2019. More than 40 carving works made with tree barks and paintings created by Feng Shuxuan, an art designer working in the garden, are applied on the trees to cover the scars. (Xinhua/Wang Haofei)

Photo taken on July 11, 2019 shows tree bark carving titled The Leopard in Zoological and Botanical Garden of Changchun in Changchun, capital of northeast China's Jilin Province. More than 40 carving works made with tree barks and paintings created by Feng Shuxuan, an art designer working in the garden, are applied on the trees to cover the scars. (Xinhua/Wang Haofei)

Art designer Feng Shuxuan colors a tree bark carving work titled The Ladybug in Zoological and Botanical Garden of Changchun in Changchun, capital of northeast China's Jilin Province, July 11, 2019. More than 40 carving works made with tree barks and paintings created by Feng Shuxuan, an art designer working in the garden, are applied on the trees to cover the scars. (Xinhua/Wang Haofei)

Art designer Feng Shuxuan colors a tree bark carving titled The Boa in Zoological and Botanical Garden of Changchun in Changchun, capital of northeast China's Jilin Province, July 11, 2019. More than 40 carving works made with tree barks and paintings created by Feng Shuxuan, an art designer working in the garden, are applied on the trees to cover the scars. (Xinhua/Wang Haofei)

Photo taken on July 11, 2019 shows a tree bark carving work titled The Woodpecker installed in Zoological and Botanical Garden of Changchun in Changchun, capital of northeast China's Jilin Province. More than 40 carving works made with tree barks and paintings created by Feng Shuxuan, an art designer working in the garden, are applied on the trees to cover the scars. (Xinhua/Wang Haofei)

Photo taken on July 11, 2019 shows tree bark carving works titled The Owl and The Parrots in Zoological and Botanical Garden of Changchun in Changchun, capital of northeast China's Jilin Province. More than 40 carving works made with tree barks and paintings created by Feng Shuxuan, an art designer working in the garden, are applied on the trees to cover the scars. (Xinhua/Wang Haofei)

A tree bark painting titled The Zebra is seen in Zoological and Botanical Garden of Changchun in Changchun, capital of northeast China's Jilin Province, July 11, 2019. More than 40 carving works made with tree barks and paintings created by Feng Shuxuan, an art designer working in the garden, are applied on the trees to cover the scars. (Xinhua/Wang Haofei)

Photo taken on July 11, 2019 shows tree bark carving work titled The Butterflies in Zoological and Botanical Garden of Changchun in Changchun, capital of northeast China's Jilin Province. More than 40 carving works made with tree barks and paintings created by Feng Shuxuan, an art designer working in the garden, are applied on the trees to cover the scars. (Xinhua/Wang Haofei)

Photo taken on July 11, 2019 shows tree bark carving work titled The Orangutan in Zoological and Botanical Garden of Changchun in Changchun, capital of northeast China's Jilin Province. More than 40 carving works made with tree barks and paintings created by Feng Shuxuan, an art designer working in the garden, are applied on the trees to cover the scars. (Xinhua/Wang Haofei)

Art designer Feng Shuxuan maintains the tree bark painting work titled The Flamingo in Zoological and Botanical Gardens of Changchun in Changchun, capital of northeast China's Jilin Province, July 11, 2019. More than 40 carving works made with tree barks and paintings created by Feng Shuxuan, an art designer working in the garden, are applied on the trees to cover the scars. (Xinhua/Wang Haofei)

Photo taken on July 11, 2019 shows tree bark painting work titled The Manchurian Tiger in Zoological and Botanical Garden of Changchun in Changchun, capital of northeast China's Jilin Province. More than 40 carving works made with tree barks and paintings created by Feng Shuxuan, an art designer working in the garden, are applied on the trees to cover the scars. (Xinhua/Wang Haofei)

Photo taken on July 11, 2019 shows tree bark carving work titled The Macaque in Zoological and Botanical Garden of Changchun in Changchun, capital of northeast China's Jilin Province. More than 40 carving works made with tree barks and paintings created by Feng Shuxuan, an art designer working in the garden, are applied on the trees to cover the scars. (Xinhua/Wang Haofei)

Art designer Feng Shuxuan maintains the tree bark carving work titled The Lesser Panda in Zoological and Botanical Gardens of Changchun in Changchun, capital of northeast China's Jilin Province, July 11, 2019. More than 40 carving works made with tree barks and paintings created by Feng Shuxuan, an art designer working in the garden, are applied on the trees to cover the scars. (Xinhua/Wang Haofei)