I like her design, it definitely conveys a shy and timid girl, but I am curious as to why people think she is crazy. Is she spacey? Does she believe in a lot of things commonly accepted to be fake? Or is it just because she believes animals are real? I would be careful to flesh her hobbies and interests out more, as well as other aspects of her personality besides shyness and introversion, to make sure that she doesn't become a stereotype, but other than that I think she definitely has the potential to be a great character, especially considering what (from what I gathered from this video) your plot is going to be based around!