Generally, Hong uses pale and distinctly muted colours to bring a sense of calmness and contemplation to his subjects. He only brings essentials to the foreground, allowing the viewer to use them as a stage for creating his or her own images and reflecting upon them. His works convey a meditative spirit, no doubt inspired by his devotion to the Buddhist faith. His works convey the essence of painting and their uncomplicated, Zen style invites viewers to delve into them and contemplate their own thoughts and reflections. As a renowned painter, Hong has exhibited internationally including Russia, Germany, Singapore, Norway, Japan, just to name a few. He participated in the Europ’Art International Art Fair in Geneva, Switzerland and also held a retrospective of his works in the Vietnam Fine Arts Museum and Singapore Art Museum. Apart from that, some of his works have been auctioned in international auction houses like Christies.