Hi, Raven! Thanks for dropping by and this is an excellent question! ^.^)/
First thing first, let me tell you about my priority list. When I make a visual novel, the first one on the list is the Story Plot. I need to at least complete the rough draft of each route before I commit myself to making it. The second is Worldbuilding + what Indonesian Culture I'd like to introduce you to. Honestly the worldbuilding is often a mix of my fantasy + the culture involved. In Winged Ones, Omed-omedan comes from Bali so I inserted a little Batik from Bali + the village houses resembles real Bali houses. The same can be said about Caci Dance. Because the dance came from the Manggarai people (Flores/East Nusa Tenggara), the Komodo tribe wears the specific clothes/batik from there too + their houses resemble Manggarai's.
Winged Ones also has the unique birds/animals you can find in Indonesia. Rama symbolized Cenderawasih, Mitra is Javan Hawk-Eagle, and Reksa is Komodo Dragon.
If you lookup at the mini encyclopedia, everything kinda connects to one another in a way. Like how Rama wears Papua Batik because Cendrawasih is from there. And there's also a mix of Javan Batik due to the existence of Javan Hawk-Eagle. But Javan people doesn't live on tree houses mind you 😂 It's an original concept of an Avian tribe (some live on tree houses while some prefer to be on the ground to preserve energy/avoid children having accidents, more specifically those who haven't learned how to fly yet)
Basically, there are lots of culture mixed in together in my attempt to make an original concept/world while still respecting my culture.
Are you with me? I wish I can do a better job explaining it ^^;
However, I admit, there is limited information I can give you about Bali/Manggarai people. Because I haven't go there myself so I can only do online research + look up real photos from people who have actually gone there. I also consider it might be a good idea not to delve too deep since it might distract the readers from the Main Story Plot.
In any case, I always do my best to explain/introduce the culture I used via the mini encyclopedia.
I hope I answered your question! Thanks again and see you around :3
P.S. I don't have a wikipedia/a website of my own so I can only explain this way~