Yep that's the idea! I'll probably start with something fairly general with general regions and a few landmarks, and we can add more specific places and info as it becomes "canon" in the roleplay. Definitely open to having some other nearby tribes, just don't have any specific plans for them yet at the moment. Might need to come up with an actual name for this one, since there are presumably multiple tribes around and they do probably all have some kind of name to differentiate them lol.
In terms of images, I guess the only thing I would say is to try to use ones that have a primitive aesthetic. So like, not people wearing modern clothing and stuff. Other than that, no real preferences. Could be a drawing or a photograph, whatever you feel suits the character.
As a side note, I'm claiming the chieftain role for the time being buuuut I'm gonna make him a little older and might kill him off for -dramatic effect- at some point, leaving one of his kids in charge.....