Mods you need: Geckolib mod
Mods for better experience: JEI(Just Enough Items)
The Forgotten End is a mod that overhauls the End dimension, by adding more stuff to the End.
The mod is being currently worked on, so there'll be frequent updates.
Your feedback and bug reports could help a lot, so please share them in the comments, so i can fix them.
Hope you enjoy the mod & have fun!!