Lily's intensity I think is what makes her moreso distinctive and special as a model than the pure "uniqueness" of her features. Not saying she's less "beautiful" though .
IMO, Devon is second most unique face...
Whoever said "Devon looks like the typical Chinese girl" hasn't seen very many Chinese girls , because she is clearly a mixed Asian ...and not only that...she's part JAPANESE not Chinese .
I love them all (which of course has nothing to do with "uniqueness" ) , but I think Gemma's face is far more unique than the other two .