makacoon
Artist, illustrator.
Pixiv nickname & username: makacoon
Twitter username: jun_yama
Twitter nickname: ヤマグチ (Yamaguchi)
See also
* Freedom (Uchuu Senkan Yamato)
* Pixiv account: http://www.pixiv.net/member.php?id=118370
* Twitter account: http://twitter.com/jun_yama
* Twitpic account: http://twitpic.com/photos/jun_yama