Read them and weep

1 Get 3 of the FireFlower
2 Complete 2 Daily Quests
3 Use 60 hints while examining hidden object scenes
4 Get 5 Silver chests from fedding pets
5 Use 20 items in zoom zones
6 Collect any 7 Ladies Enchanted Eggs
7 Make 10 trades with the children
8 Beat the Iron Knight at dice 3 times
9 Send 3 packed airships
10 Complete 3 Daily Quests
Reward: Florist avatar

11 Collect  any 10 Mice Enchanted Eggs
12 Get 5 of the Snowdrop
13 Get 7 carrots
14 Get 4 gold chests from feeding pets
15 Make 15 trades with the children
16 Collect any 13 Creatures Enchanted Eggs
17 Make 20 trades with the children
18 Get 10 of the Jelly Candies
19 Get 5 unusual stamps
20 Get 5 of the Iris
Reward:  Botanist avatar

21 Get 15 Plain Stamps
22 Get 20 of the Nuts
23 Use 30 hints while examining hidden object scenes
24 Get 7 Smiles
25 Get 25 of the Chocolate
26 Feed spring event pets 3 times
27 Beat Mountain Troll 'Rustle' at dice 5 time
28 Beat Anabel at dice 3 times
29 Collect 120 morphing eggs
30 Get 4 of the Snowdrop
Reward: Nature Mage avatar  (or any other CC avatar you don't already own, make sure you choose avatar before starting the last task)