But Iron...I love Zyra! I thought Syndra was beautiful and I love, love the gorgeous Nami concept art! These are NOT mistakes! They are beautiful additions to LoL. Just because some people don't like them (but when do ALL people love something?) doesn't mean they are mistakes or can't be appreciated! People will always complain about new champions. For Draven, Darius and Jayce, it was that all male characters have become "typical human boring archtypes". For Kha'zix and Renegar (after listening to the community who wanted more monsters) it was "oh no, not more assassins..." now for Nami and Elise, it's "omg, why do they have cleavage?!".
I mean, I already said, more variety is always good. Sometimes, the releases of "similiar" (using the term loosely here) champions might be your only mistake here. Of course, I don't disagree that we need more cool monsters like Anivia or more badass females like Diana, but a lot of people also love our disney princesses like Diana, we love elegant beauties like Leona, we love dark and beautiful Syndra and Elise. So don't stop making them just because it ruffles some people's feathers. The same people will complain that you are only making covered up females some months later, wait for it.