This is one of my Elaphe frenata; the rarest and prettiest beauty.
In Western world, many people called them "Rein Snake", but in their origin, we called them "Green Beauty Snake".
It is easy to understood why Chinese think they are a kind of beauty snake as they also have black stroke beside their eyes.
The distribution of them is wide as discribed on serveral literatures, but the numbers of them in the wild is small.
Enjoy the picture!