Dan Kozan's Art: Mostly multi-media work done in pencil and the GIMP.
Digital Stains: Artistic and design works of Michael J. Hammel.
Graphic Doodles: 2D graphics using GIMP.
Inside the Bomb: Scott Draves, the author of GIMP Flames plugin, showcases a gallery of his flameworks.
Nate' Gimp Art: Features an abstract image gallery.