Big Boeing customer Hainan Airlines is showing off its flashy new 787-9 Dreamliner on Facebook and Twitter.

The airline posted photos of one of the new plane’s interiors, drawing praise from aviation enthusiasts and Dreamliner fans from around the world.

Launched in 1989, Hainan is one of China’s top five airlines. The fast-growing Chinese airline is based in the city of Haikou, Hainan Province, with a hub in Beijing. It flies Boeing’s Dreamliners in and out of Seattle-Tacoma International Airport.

The…