Editor's note: An art exhibition celebrating the 25th anniversary of Hong Kong's return to the motherland has opened at the National Museum of China in Beijing. The collection, themed "Greater Bay Area (GBA) in the Eyes of Artists," features paintings and sculptures made by artists from the Chinese mainland, Hong Kong and Macao and depicts landmark events and critical achievements happening in the GBA over the past two decades. It also offers different perspectives about the development of Hong Kong and Macao under the "one country, two systems" policy. Here, China.org.cn looks at some of the artworks exhibited.