URLs

• https://www.pixiv.net/users/453679
• https://www.pixiv.net/stacc/geometry_dogs
• https://twitter.com/krd_gd
• https://twitter.com/intent/user?user_id=434641535
• https://sketch.pixiv.net/@geometry_dogs
• http://geometrydog.blog.fc2.com
• http://geometrydogs.but.jp
• http://twitpic.com/photos/krd_gd