Okay so like “officially” (or about as official as you can get with c.s. Lewis) the lore in Narnia meaning the entire world narnia exists in not the country itself, most human civilizations in Narnia come from people in various points stumbling through some sort of inter dimensional portal and then living here. Narnia is the only actual “country” with people from that soil in theory.
Like the telmarines are all descended from pirates in our world that fell through a portal into the narnian world and colonized narnia itself.
We don’t really get explanations for calormen, the lone islands, the seven isles or archenland so I’m just assuming here but I like that idea.
So my thinking is that for my version of it narnian architecture and clothing and etc would be the most like, fantastical, meanwhile the other lands would have cultures more grounded and “human.” Though obviously some human influence I guess.
Of course over time even those human cultures would change. Like maybe telmarines start out being very 1:1 with the culture of the time period and area they came from (I haven’t decided what that is other than vaguely carribean or Spanish maybe) but over time it becomes it’s own thing. Like I’m thinking about how for example the nations in ATLA are very clearly inspired by certain cultures in certain time periods but they’re still their own fictional thing in some ways.
Maybe the islands are where many different people from different places have ended up. Like not as much of a direct ancestry as telmar.
I think I like the idea of archenland having maybe a heavy Irish or scottish heritage. I’d like them to be more classic fairytale in a medieval way to contrast with narnia being more elvish/not as clearly based in a specific human time period/fashion style. But idk what that all looks like