Taylor Bell, The Brainiac

In the books, Taylor is described as the sweetest of the bunch. She's a junior, with messy dark blonde curls and blue eyes. She has a cherubic face and although she typically goes along with everything her friends say and do, she is the most sensitive. 

She's a helpful person, having tutored Reed when she was struggling. She's very smart - she completed her semester's work at the beginning of the school year. She claims to have a photographic memory. 

For me, Taylor was the hardest to imagine. I think of her as Chloe Grace Moretz, but Chloe has lighter blonde hair and is similar in appearance to Gabriella Wilde (Ariana, for the books). So, I jumped to Taissa Farmiga from American Horror Story and the Bling Ring. Although Taissa has brown eyes while Taylor's are blue, I think it's a good match. Taissa is really sweet and innocent-looking. What do you think?