Complex sentence: Froberg is also an accomplished fine artist and illustrator, contributing album covers and promotional artwork for all of his bands, as well as many designs for Swami Records and Rocket From The Crypt.
Split into simpler sentences: Froberg is also an accomplished fine artist and illustrator. Froberg also contributed album cover and promotional artwork for all of his bands, as well as many designs for Swami Records and Rocket From The Crypt.