I'll just say that it seems that most of the free stuff for Poser characters is "white", with Japanese/Chinese coming second in numbers. I've found a few "african" character morphs, and very few textures for them. I think a part of this may be little more than the distribution of Poser users -- think MayaDoll and all the Japanese=language sites -- rather than conscious bias. It's still the sort of thing I'd worry more about than such things as what "ethnic" means.