Here is the full list of all 29 Maria the Witch achievements.
500 Retries
Completed World 1
First 10 Mails
250 Retries
First 10 Coins
Beginner CheckPoint
Beginner First Mail
First 500 Brooms
First 1000 Brooms
Beginner Take Off
Beginner First Coin
Beginner Landing
Beginner Arrival
First 100 Brooms
First 250 Brooms
First 50 Coins
First 100 Coins
First 50 Mails
First 100 Mails
1500 Retries
3000 Retries
Completed World 2
Completed World 3
Completed World 4
Completed World 5