Sanada Ikki https://twitter.com/sanadaikki

Also known as Harvest Moon

https://www.pixiv.net/en/users/174440
http://nekonpan.blog24.fc2.com/

Second First Kiss Nanoha Doujin released Jun 7 '09 Arisa x Suzuka Nanoha x Fate Yuri
K-ON! Anthology Comic ch17 released Jul 27 '14 4-koma Anime Comedy Music School life Spin-off
Hidamari Sketch Anthology Comic ch02: Hidamari Mermaid Hidamari Sketch Doujin released Feb 7 '15 4-koma Comedy