Enderman Overhaul Tips

Get the files on 9Minecraft

Explore widely — the easiest way to see the variety is to travel through many biomes at night.
In creative mode, grab the biome enderman spawn eggs to line the variants up side by side.
As with vanilla endermen, avoid staring directly at them unless you want a fight.
Bring the required libraries (a model/animation library and its support libraries) so every variant loads with its full model and textures.