The Tainted Monster

So i don't really know much about The Tainted Monster but i still have saved the world where it was, one day in July 14 2014 (a year before i made my youtube channel), i created a new world named surivial, i spawned in a jungle biome, so i did everything, mined some wood, mined some stone and mined sand for glass, when i set the sand to melt to glass, i decided to take a picture of my house, i took it, then i didnt play on that world for 2 years, after 2 years I played on it for 5 minutes because i accidentally clicked the wrong world, then in 2018, i was showing my friend my minecraft screenshots because he really wanted it, when i came across the 26th screenshot where was the entity what i call Tainted Monster, he asked me, are you playing multiplayer? I said No, the he pointed at the figure, i was creeped out for what i saw, so i came to the world, the monster was not at the place, the glass was still melting, then i quitted the world, made a backup if i accidentally lost the world, and i decided to find the entity but now i will start recording, the videos will be on Virtual Esence here is the picture (it's in the vines of that jungle tree, red eyes)