The background CGI quality is awesome and as for the storyline is similarity of fairies' dramas protection of the realms etc.
For the actors acting skill
Yang mi has stiff and stern facial expression regardless in any moment and interacting with male lead Gong Jun has no chemistry at all and i could see the age gap between them only causing some awkwardness.
Actor Gong Jun is optimistic, cheerful and expressive and another actor Wei zhe ming is witty and mystery
overall acting rating for these two male leads are 9/10