Here is the full list of all 16 Adorable Witch achievements. It takes around 0-1 hour to unlock all of the achievements on Windows.
Game Start
Level Finished Ⅰ
Level Finished Ⅱ
Level Finished Ⅲ
Level Finished Ⅳ
Level Finished Ⅴ
Level Finished Ⅵ
Level Finished Ⅶ
Level Finished Ⅷ
Level Finished Ⅸ
Level Finished Ⅹ
Finish all stages without using any Skip.
Fail for the first time in any level.
Used the skip button.
Finish all stages.
Playing the game at 1 a.m.