Lootbags: Uncommon 2/2 - metal weapons and enchanted gold weapons
Glorious Nether with shaders and biomes
Beautiful structures - This one is from Integrated Dungeons and Structures
The Revamped Ender Dragon looks amazing
Lootbags: Uncommon 1/2 - useful things
Lootbags: Common 1/1 - basic things
Lootbags: Epic 2/2 - Every music disc
So many things - Shaders, When Dungeons Arise structure, Towers of the Wild, new biomes, Botania, Mob Heads, and a spooky Enderman
Butterflies and fluffy clouds
Fluffy Rainbow Sheep - Earth2Java
Lots of gear on horseback
Lootbags: Epic 1/2 - drop from bosses, very hard to find things, netherite weapons, armor with treasure enchantments
Lootbags: Rare 2/2 - horns, bows, arrows, and special armor
Lootbags: Legendary 1/1 - incredibly rare and powerful things
Lootbags: Rare 1/2 - precious and hard to find things