Do you happen to have (artist) source for the Katarina picture on your tumblr (the most recent one, that has the chinese LoL site watermark)?
Here you go.
Katarina Picture:http://www.pixiv.net/member_illust.php?mode=medium&illust_id=25034637
Pixiv Site: http://www.pixiv.net/member.php?id=302536
The artist’s name is 時田ユウキ. ( I do not know the translation)
