murayama_rio
Artist.
Japanese name: ムラヤマリオ (MurayamaRio)
Circle name: マリオワーノレド (Mario Waanoredo)
See also
* Pixiv account: http://www.pixiv.net/member.php?id=654867
* Niconico account: http://www.nicovideo.jp/user/20454577
* Niconico Seiga: http://seiga.nicovideo.jp/user/illust/20454577?target=illust_all
* Circle.ms: http://c10030052.circle.ms/oc/CircleProfile.aspx