Okama (May 25, 1974 -) is a Japanese manga artist and illustrator. He is known as the artist of "Cloth Road" as well as the original character designer for Himawari and Glass no Kantai. He was also involved in Gunbuster 2, most noticeably in the ending design. Okama began his career by publishing various doujin works (usually hentai themed), and made his debut in the professional world in 1998, with most of his early work also being hentai erotica themed. Wikipedia
The definitive Wikipedia entry for Okama. Wikipedia is the biggest multilingual free-content encyclopedia on the Internet. en.wikipedia.org/wiki/Okama_%28artist%29