CC's RP pack

Added:

Rapid leaf decay

Builder's craft and additions - Fun furniture

Flower seeds - makes dyes more farmable

Oh the biomes you'll go - more biomes 

Chlorine - Impressive optimization, can be removed if you don't like it

Useful backpacks - better backpacks

Ultimate car mod - cool ways of getting around

Pandora's creatures - more animals 

Creatures and beasts - more animals

Removed:

Corail backpack - difficult to learn how to use, replaced with useful backpacks, see added