FOR THIS MOD TO WORK, YOU NEED TO INSTALL -
Geckolib 4.7.6 - 1.21.1
Curios API 9.5.1 - 1.21.1
This Mod Also supports JEI
Let me show you what this mod has to offer: -
For a start, let me tell you the new biomes I added -
The Isolated Islands

Here's a list of what this biome offers -
Pink Lichen (Block)
Overgrown Pink Lichen (Block)
A Woodset - Shadowpine (Blocks)
Bioluminescent Chorus Fruit (Block)
Chorus Torch (Block)
End Floating Tower (Structure)
Departed End Ship (Structure)
End Floating Farm (Structure)
End Whale (Mob) - Can be ridden
The Devoid

Here's a list of what this biome offers -
Void Block (Block)
Void Crystal (Block)
Void Herbage (Block)
Gleam (Block)
Gleam Fruit (Item) - When eaten, the player gives off a subtle glow
Void Shards (Item) - Can be used to craft a Vacuo Ampul and an End Portal Frame
Vacuo Ampul (Item) - Can be used to store a specific amount of XP
The Drift Lands

Here's a list of what this biome offers -
Drift Stone (Block)
FloatShroom Stem (Block) - If a player jumps off a FloatShroom Stem, the player will get Slow Falling until they reach the ground
FloatShroom (Block) - If a player steps on a FloatShroom, they will be shot up into the sky
Hover Bush (Block)
Hover Berries (Item)
End Gravitate (Structure) - See more
End Gravitate (NOT A BIOME BUT A STRUCTURE)

This structure is the end's equivalent of a trial chamber. However, to get loot from the end vaults, a player needs to put in the drops of the enemies that spawn in the gravitate. These enemies include -
The Endersent

The Drift

The Obsidian Golem - You cannot make this golem before entering the end

Hint - Look at the advancement you get from this mob, and try to use Crying Obsidian.