East Africa, specifically Ethiopia, might be a good place to investigate as well. That place is ancient. It's a been an area with a lot of cross cultural movement given it's location. That place was never truly colonized. Ethiopia is ancient and they still speak only the languages of their people with English used as a business and education language learned mostly for commerce. Their people look sort of like elves too. Dark-skinned, pretty, delicate features, tall, and often thin. You could make a very cool African kingdom of elves based on Ethiopia.