or is there no difference? For example, in Europe, we can tell if someone looks eastern european or not. Is this the same in China? do mandarin people look "different" than cantonese speakers in terms of ethnic group? or do they belong to the same ethnic group?
I want to add images of Chinese people on a website I am making, some for a mandarin page, and some for a cantonese page, but I want to make sure that the people being used are appropriate.