Marc-Antoine Mathieu : L’Origine, Paris, Delcourt, 1990, p. 42. Page 29, I believe, is a little more fractalic(a panel is actually the page you hold in your hand, which has a panel that is the page you hold in your hand, which has...). But I couldn't find it.
Flex Mentallo by Grant Morrison and Frank Quitely, published by Vertigo in First part of a sequence.
Fractal Jake by Branden Lamb, Shelli Paroline(art) and Ryan North(story). From Adventure Time published by Kaboom!
Kris Kool Philip Caza’s Psychedelic Graphic Novel
Drawn by Boulet, story by Trondheim and Sfar. It's from the north-american version of Donjon, Dungeon: Zenith, vol 3 - Back in Style published by NBM in