Question: What series on Cartoon Network was created by Pendleton Ward and had it's first three season's background designs lead by Ghostshrimp?
Sentence (from "Adventure Time"): Finn and Jake live in the post-apocalyptic Land of Ooo, where they interact with Princess Bubblegum (Hynden Walch), the Ice King (Tom Kenny), Marceline the Vampire Queen (Olivia Olson), BMO (Niki Yang), and others.
Relevant evidence: No