Season 2 gives a better execution than in Season 1, notably in acting, cinematography, and costume. Other characters besides Fei Fei gets more screen times, especially the establishment of the romantic couples and bromance/sismance friendships. This is good especially in Season 2 Fei Fei is more serious and mature (which is not too hilarious anymore) especially after she is an established master of Ophichus and the Emperor's bride-to-be). The introduction or building up of new antagonist characters from Orion Land are refreshing for the climax of the new plot of this season. The flight thru desert scenes of and the final bloody battle are outstanding. The costumes are more diverse and glamorous, possibly due to bigger budget after the succession of the Season 1, especially Fei Fei's elegant master and Xiao Bing's desert princess costumes. Actor/actress Zhao Lu Si (Fei Fei), Sean Xiao (Mo Ran), and Song Nan Xi (Yan Ran) did great jobs in longing and broken-heart scenes, especially Lu Si in the last episode. Notably also the romantic and melodrama scenes between characters Tang Tang - Xiao Bing and Wu Chen - Da Li. My only critic is I still did not see ML Jason Koo acted better in the Season 2 and was still overshadowed by Sean Xiao's emotional character. No wonder little Chong Chong called him the Mean Looking Brother versus the Good Looking Brother Mo Ran.
Last scenes are the best ones in the whole Season 1 and Season 2 together, so be patient to watch until the end Oh, My Emperor! story.
Although fans are rooting for Season 3 and it did look like the end was set up for continuation, but I don't think it is necessary we need Season 3, let the other characters' time traveling remain mystery and fantastical.
High rewatch value for both Season 1 and Season 2, due to actress Lu Si's comical and Sean Xiao's emotional acting, the abundant hilarious scenes, and the X Nine eye candies.