Complex sentence: His comics career began at Image Comics by writing and co-creating series "The Last Christmas" with Posehn and Rick Remender, and later "The Infinite Horizon" with Phil Noto, with was nominated for an Eisner Award in 2008 for Best New Series.
Split into simpler sentences: His comics career writing and co-creating comics at Image Comics with The Last Christmas with Posehn and Rick Remender, and later with The Infinite Horizon with Phil Noto. The pair were nominated for an Eisner Award in 2008 for Best New Series.