Spencer Everly is a video maker that not only makes animation, but Sparta Remixes. He began Spartas on summer of 2014, making his first made Sparta called, "It's a giraffe! Sparta Mario Kart Remix", using a video editor called Splice. He also made a V2 on Vegas later.
He didn't start improving until the middle of 2016, when he made many remixes using Melodyne for the first time.
Will edit the rest later