Here is the full list of all 25 Clouds & Sheep 2 achievements.
Plant 100 conifers!
Find 100 hidden Easter eggs!
Let a sheep do a full swing!
Find the Fountain of Youth!
Purchase 10 decorative objects!
Equip a male white sheep with a cowboy hat in the Prairie!
Get 10 sheep!
Give your sheep 10 hats!
Try to hit a lamb with lightning bolts 10 times!
Equip a male black sheep with a pirate hat on Treasure Island!
Solve 100 quests!
Shear 100 sheep!
Build 11 snowmen!
Build a snowman using two baby sheep snowballs!
Let a single sheep jump 100 times on the trampoline!
Spend 100 balls of wool on painting sheep!
Split 100 clouds!
Let your sheep eat 100 tufts of grass!
Toss 100 sheep!
Roll a sheep against a pinwheel!
Let your sheep get struck by lightning 25 times!
A sheep died and became a cloud!
Let 3 clouds rain at the same time!
Touch 100 clouds!
Match a loving couple!