Do you think Tsui Hark's movies are good? Why do people call him "Tsui Hark"?

I love Tsui Hark's work because every movie he makes is very carefully shot, and his choice of actors and plot ideas are amazing. Tsui Hark is known as Xu Laoqi because his works always give people a sense of surprise, for example, we are all familiar with White Snake, while Mr. Tsui Hark preferred to shoot Green Snake, I think it is because of this strange style that director Tsui Hark's works are so unique.