Fallen leaves and flowers for more biomes and pig improvements Feedback

I love the new flowers and fallen leaves, but why are they limited to only 2 biomes?

Add new fallen leaves variants for jungle, taiga, or dark forest biomes, and new flowers for more biomes as well. 

I would like to add that since the pigs have been updated, add 3D ears to them as well as to piglins, I also think more mobs could get variants.