http://www.pixiv.net/member_illust.php?mode=medium&illust_id=51471553It's from an artist on Pixiv called Evandragon. The character is Youmu from Touhou. The animation appears to be referencing a scene from the anime Mikakunin de Shinkoukei. I don't know where the fish is from or why it is behind Youmu, maybe it's also from that anime.
