Add Adding new mobs and their biomes in each version!!!

The new version could add a new otherworldly dimension with a new portal: the sand of souls and the flint. Add new a type of tree with the name - death tree and leaves with the name - death leaves. You can also add three new mobs: the first is a soul, which will have 10 hearts of health and will be blue - transparent in color. The second is a demon, he will have wings and will be able to fly and will have 18 hearts of health. The third is the mortal dragon, it will be exactly the same as the ender dragon, but will give 100 experience points. The other world will have a gray sky, gray grass (gray theme), but the distance from the stone to the bedrock will be the same. I hope you like this idea and you will definitely add it all to Minecraft in the future.