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