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
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.