That is Akane? My, she is so beautiful in that look. She is even more beautiful when her eyes are opened. She needs to show up in the second season and stalk her own poor sister Akarin.

The photoshop artist seems to be an anonymous 2ch user who posted the 705th comment on the 111th Yuru Yuri topic/thread of 2ch Anime Board.

Datalog: http://www.syu-ta.com/blog/2011/09/08/185009.shtml