The inventor of the alien creatures known as Zanburgs (ザンブルグ).
Currently, he has many activities in Twitter and Twitpic.

Artist name: 上野 ペ太郎 ('Ueno Petarou' or 'Ueno Petarow')
Other names: 上野 甲助 (Ueno Kousuke), ぺ太郎 or ぺたろー (Petarou or Petarō)
Old Pixiv ID: uenodesu

Confusion over "Sea Angels"

On 4chan, the species was nicknamed with the term sea angel due to their sleek, aquatic appearance. However, real sea angels are a markedly different creature bearing little resemblance to the Zanburg.

Sites:

• Drawr account: http://drawr.net/uenodesu
• Pixiv account (Active): http://www.pixiv.net/member.php?id=13091797
• Nijie account: https://nijie.info/members.php?id=52515
• Tumblr blog: http://okatimati.tumblr.com/
• Twitpic account: http://twitpic.com/photos/ueno_petarow
• Twitter account: http://twitter.com/ueno_petarow

• Pixiv Account (Closed): http://www.pixiv.net/member.php?id=8071
• Blog (Closed):http://penipenipenipenipeni.blog33.fc2.com/
• Oekaki board he used to post in as 上野 and 上野甲助: http://cat.oekakist.com/rencoin/?fc=page&sort=0&page=1
• Old (defunct) website: http://web.archive.org/web/*/http://kousuke20.sakura.ne.jp/