The ultimate cartoon crossover! Gumball/Steven Universe/Wander Over Yonder/Legend of Korra/We Bare Bears/Powerpuff Girls/SpongeBob/Adventure Time/Gravity Falls/Teen Titans/Star vs the Forces of Evil. If you know the artist let us know. by cartoonbrew
TBH, it looks like Garnet controls the arm with Sapphire's gemstone, and the one at the bottom diagonal from it. While Pearl controls the arm with Ruby's gemstone, and the one at the bottom diagonal from it.