Azzy
ᚳᚣᚾᛖᚹᚢᛚᚠ (He/Him)
So, a mishmash of SE Asian cultures and architecture?
Just for example, one with the castes and deities of India, the Chinese Shaolin-type monasteries, the various yokai of Japan, the veneration of ancestral spirits, and perhaps a nation with a wall to hold off a tribe of mounted barbarians?
Yeah, different nations would be different mishmashes. Something that focuses more on fantasy than simulation.
The setting of the manga/anime Akatsui no Yona is a good example of fictional East-Asian inspired setting. While the setting has very little supernatural elements (limited to a handful of the main characters), it serves as a good example of not being a simple China, Korea, or Japan analogue.