"Athena Helios", or simply "“アテナ (Athena)”":http://www.pixiv.net/member_illust.php?id=298296&tag=%E3%82%A2%E3%83%86%E3%83%8A 

[[Original]] character by [[hrk173]]. Has [[heterochromia]] ([[blue eyes|blue]] and [[brown eyes|brown]]), [[single braid|a]] [[side braid]] and [[flipped hair]].
athena helios