このへんじゃないか？
http://www.pixiv.net/member_illust.php?mode=medium&illust_id=23945257
http://www.pixiv.net/member_illust.php?mode=medium&illust_id=23995451
http://www.pixiv.net/member_illust.php?mode=medium&illust_id=23799441
http://www.pixiv.net/member_illust.php?mode=medium&illust_id=23959856
http://www.pixiv.net/member_illust.php?mode=medium&illust_id=23781795
http://www.pixiv.net/member_illust.php?mode=manga&illust_id=23743854