I'm mixed.

But just slightly. I do look like a pure Chinese, except for my reddish hair and very fair, pinkish complexion. Or maybe long legs are the traits from my caucasian great-grandma too. I don't know.
My mum looks more like 新疆人. Her eyes are very beautiful......Mum is always the most beautiful woman in the world in the eyes of her children.

BTW,I think a lot of Chinese are kind of mixed because many minorities (匈奴，鲜卑)have been coexisting with Chinese people in the history of China. I mean if you know anything of "五胡乱华”.