Artist. Formerly tagged as tanmomo or kasuga_(artist).

Japanese name: タンモモ (Tanmomo)
The other names: 郁生 (Ikuo) or "tm"
Old names: 千秋 (Chiaki) or かすが (Kasuga)
Site names: "RGB", "rcw." or "r."

See also

• Home page (1): http://rcw.skr.jp/rgb/
• Home page (2): http://rcw.skr.jp/colmena/
• Gungrave-themed tumblr: http://rcwgg.tumblr.com/
• Pixiv account: http://www.pixiv.net/member.php?id=15939
• Drawr account: http://drawr.net/rcw
• Old blog (moved): http://rgb.sblo.jp/