I always read the Andor folk as basically British. the Cairhien are French, the Tairens are Spanish, the Seanchan are Japanese. Illian always came across as scottish or irish style folk
the part that I don't care for, is Jordan spends a LOT of time talking about what folks look like, mostly tho just to highlight certain plot points.
Rand looks the same as the rest of the two rivers folks, except he's much taller, red-headed and blue eyed, where they're dark.
Jordan also talks a lot about the Andor royals, and how they're fair skinned, but red headed, blue eyes (hinting at Rand's parentage.....)
I don't care that main characters are non-white, its just that in this particular case, there was kinda a reason....