Shadow art is a unique form of sculptural art where the 2D shadows cast by a 3D sculpture are essential for the artistic effect.

A police officer jump ropes with a police dog at a police dog training base on July 11, 2011 in Beijing, China. The Police Dog Training Base was opened to a media visit to show the dogs skills to the public. (Photo by ChinaFotoPress/Getty Images)

Girls during a class at the Teire Irish dance school in Moscow, Russia on March 15, 2019. (Photo by Sergei Karpukhin/TASS)

Johnson Cheung-shing Tsang is a Hong Kong sculptor specializing in ceramics, stainless steel sculpture and public artworks. Tsang’s works mostly employ realist sculptural techniques with a surrealist imagination, integrating the two elements, human beings and objects, into creative themes.

Finia, a visiting student from Hanover, cools off under a water sprinkler in front of the Chancellery on June 10, 2010 in Berlin, Germany. (Photo by Sean Gallup/Getty Images)

Wai Ching Jason Poon of Hong Kong competes in the Men's 1m Springboard preliminary round during Day One of the 14th FINA World Championships at the Oriental Sports Center on July 16, 2011 in Shanghai, China. (Photo by Feng Li/Getty Images)

A woman views a painting by American artist George Condo entitled “Jesus” on October 17, 2011 in London, England. (Photo by Oli Scarff/Getty Images)

Labourers carry a basket packed with vegetables through a wholesale market in Kolkata, India, February 26, 2016. (Photo by Rupak De Chowdhuri/Reuters)