Artist.
Artist name: よよよよう (Yoyoyoyou or 4444u)
Other names: よよよようし or 旧よよよよう
Circle & site name: キリモチテクスチャ
https://www.pixiv.net/users/1839860
https://www.pixiv.net/stacc/kirimoti4
https://twitter.com/4444u
https://twitter.com/intent/user?user_id=107434444
https://pawoo.net/@kirimoti4
https://pawoo.net/web/accounts/742399
https://sketch.pixiv.net/@kirimoti4
https://www.pixiv.net/users/13284
https://www.pixiv.net/stacc/kirimoti
http://twitpic.com/photos/4444u