Oh, I was the same one who planned the mod with those extra Creepers for the three dimensions.
So, Now, I wear an Enderboss skin, but I used to wear an Enderman skin, but before that, I wore a
Herobrine skin. If I can, I can tell you how to make it!
See, All I did was make the pupils of the default skin white!
That is how you make the Herobrine skin.