I believe that Cinder can’t be asian, as she’s from Luna. Just because she lives in New Beijing doesn’t make her actually asian. She would look similar to her glamour, which looks like Channary, and we know what Channary looks like.
Well... on the character descriptions on marissa meyer's website it says she's asian/caucasian. We don't know cinder's father. We just know channary had an affair with someone (and she had many affairs) , so it's possible she could be half asian/mixed. There aren't just caucasians on luna.
Well i’m not saying this is right but whenever i picture her, she has slightly tanned skin, always dirty (of course), light brown hair in a ponytail, and kinda like a stick lol but yeah :))
I mean, she is lunar but, that doesn’t mean that she is just one race and can’t be Asian. Just like how an American can have Asian genetics, Cinder can be Asian and Caucasian, well still being Lunar.