Yoshitoshi ABe
From Serial Experiments Lain wiki
Yoshitoshi ABe is the character designer for Serial Experiements Lain, as well as other popular anime, such as Niea_7 and Haibane Renmei. A collection of his art for the series was released as Omnipresence in Wired, which features the short manga, The Nightmare of Fabrication.
He is currently working on a new series, called Despera, based in 1930s Japan, with a main character named Ain, who looks very similar to Lain.
He may be found on many online communities, such as Twitter or YouTube, usually with a screenname of Abfly, or similar.