1- Villagers - Make them more human like, so they fit in, and give different skins different hair and eye color , and some could be female. They still have the same trading system
2- Horses and Donkeys, and Mules - Make them look more blocky, for me, they have too many "cubes" . They will drop the same things as before, and would look something like this, ore slightly updated:
Then there should be a horse breeding system change
3- Horse Breeding System - Now the horse breeding system is also a bit different, too. When you breed a horse and a mule (mules can now breed) with special items, it will make new species of horses. The 2 new species are unicorns and Pegasus, as well as mixture of both. Here are the required items (Both Items are found in dungeon chests, as rare as diamond found in a mine shaft or rarer), Horse abilities, and breeding chances. (Note if a horse is not maxed in one stat, it cannot breed, or it will not work)
Unicorns: 10 Extra Hearts and Can Jump and Run Fast
Mule + Horse /w Max Health + Unicorn Horns = 30% Of a Unicorn
Mule + Horse /w Max Jump + Unicorn Horns = 30% Of a Unicorn
Mule + Horse /w Max Speed + Unicorn Horns = 40% Of a Unicorn
Pegasus: Can Fly (See More Below)
Mule + Horse /w Max Health + Pegasus Wings = 30% Of a Unicorn
Mule + Horse /w Max Jump + Pegasus Wings = 50% Of a Unicorn
Mule + Horse /w Max Speed + Pegasus Wings = 20% Of a Unicorn
5- Pegasus Flight - You cant fly forever. If you see, above your health bar, there is a meter filled with feathers. There are about 10 of them. You can press space to flap once, and take you two blocks up. One feather refills every 5-10 seconds, making flight harder than I seems.
6- Pterippus, Alicorn, Pegacorn, Unisus, etc (A winged & horned horse, basically) - You can get this horse by breeding a unicorn and a Pegasus together, with a unknown ingredient (You Decide!) This is its breeding chances are as shown below:
Pterippus: Has both Unicorn and Pegasus Abilities
Pegasus + Unicorn + ? = 50% Of a Alicorn, Pegacorn, etc.
7- Undead Horses - Zombie and skeleton horses can now spawn, but can not be tamed, and are aggressive. They have about 15 hearts each and to 2 hearts on easy, 4 on peaceful, and 6 on hard. They can also be ridden by skeletons and zombies, which is a very hard combo.
8- Just for LOLs:
Baby creepers, which spawn as rarely as endermen. You can tame them with 1-3 TNT, but you have to be quick, or they will explode. Once tamed, they will become mini bombers for you.(Be Careful, the blow up even right next to you, or even other pets!) Once the blow up the enemy, they die, and drop gunpowder (Also if you kill them without taming them) The good thing is that the explosion cant break blocks but will deal the same amount of damage as a regular creeper.
Do mobs still run away from creepers? if so: Most mobs will stop to adore this mob, and will not run away from it. Then - Boom! The opponent is defeated, or very weakened.