Here is the full list of all 18 Alice's Patchwork achievements. It takes around 20-25 hours to unlock all of the achievements on Windows.
20 levels with 3 keys
20 levels completed within the time limit
World 3 finished
World 2 finished
100000 coins collected on levels
World 1 finished
5 levels in raw without mistakes
World 4 finished
World 5 finished
World 6 finished
40 levels with 3 keys
80 levels with 3 keys
All Trophies collected
500000 coins collected on levels
1000000 coins collected on levels
50 hints used
100 hints used
150 hints used