This is Janice, a main protagonist and arch-nemesis of Nikki from the MC:SM Rewritten Side Stories, a spin-off series that showcases more of the characters adventures and even expands on the well thought out lore of the MC:SM Rewritten Universe. She can basically control and spawn an army of mobs. This skin was based entirely off her description on the Wiki, with no references to go off of.

Description, according to the Wiki:
"Janice is a mixture of all hostile mobs, but she has short raven-black hair and red eyes. To be specific, she has enderman-black (but not too skinny) arms with ender pearls in her palms, skeleton legs, and a spider tiara. She wears a zombie skirt, slime combat boots, and a creeper top."

Source: https://minecraft-story-mode-fan-fiction.fandom.com/wiki/Janice


DISCLAIMER: I did not create the character Janice. All credits goes to Jetrashipper/Ninjakid14, the original creator of the character.