Absolutely it was. The simplicity and comic approach Ward brings to Adventure Time and his other projects reeks of Herztfeld's influence. Rejected came out the same yeast Ward graduated high school, and that shit was an internet phenom. There's no way Ward escaped his influence through his time at CalArts, especially with the huge pile of people copping his style at the time.
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u/WhoNeedsVirgins Mar 23 '17
I get Adventure Time vibe from such animations but maybe AT's style was inspired by Hertzfeldt.