This pack changes everything to match the first appaearance when they have been added in snapshots or first seen in minecon live
First we have the axolotls:
Pink
Brown

Gold

Cyan, inspired by this photo seen in minecraft live 2020


And blue axolotl turns into green

Now here is the nether mobs:
Hoglin

And strider (first shown by Jappa on Twitter)

1.13 mobs:
Turtle (first shown by Jappa on Twitter)

Drowned (first shown by Jappa on Twitter)

And phantom (the monster of the night skies or Mob B)


Now the blocks and items

Corals

Nether

Deepslate

Cartography table

Fletching table

Smithing table

Stonecutter

And sculk sensor


Big credits to AxolotlMC
Xillager
And Jappa