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.
World 1 finished
World 2 finished
World 3 finished
World 4 finished
World 5 finished
World 6 finished
20 levels with 3 keys
40 levels with 3 keys
80 levels with 3 keys
5 levels in raw without mistakes
All Trophies collected
100000 coins collected on levels
500000 coins collected on levels
1000000 coins collected on levels
50 hints used
100 hints used
150 hints used
20 levels completed within the time limit