After listening to her interviews and reviewing her art, I believe she is legitimate. To say that she is spirituality mature for her age would be a gross understatement and her art is simply stunning. Some people are labeling her as a so-called "indigo child", which is a whole other topic, but I don't believe she's anything like them. It's obvious that the people saying that don't understand Christianity at all.
From what I've read about her.. her parents didn't even believe in Jesus and didn't even talk about religion in thier home. But she kept having dreams about Jesus and felt like she needed to paint him. They are now believers. I love this story.