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