artist: Fruit Punch

another great artist that made beautiful fan-art from some game, mostly is from Touhou and Tales of series
with cute drawing and very nice coloring, definitely one of my favorites

artist: E-ji Komatsu

great artist who have nice collection of mech-girl illustration, based on famous mecha anime like Gundam, Macross, SRW etc
also known as illustrator for some games like Deep Blue series [Tristia] and Super Robo Gakuen

artist: Rudoni

made some sexy and ero fan-art from some games [mostly girls] like Dead or Alive, Soul Calibur, Resident Evil, Fatal Frame etc

artist: Mazeran

drawing a nice collection of persona-style from touhou characters
some of them are rather creepy tough

artist: Toshiaki Takayama

one of ilustrator from Duel Master trading card game
has a nice colection of mythical and mechanical beast illustration
very great in design, detail and coloring

artist: Yuuno

another my favorite illustrator
made some cute rider-tan and other game fan-art

artist: Peach Class

one of my favorite illustrator
also known as Tooru Nakayama, character illustrator in game Megaman Zero, DOMO Online and Fuuka Taisen