Here is the full list of all 12 The Land of Crows achievements.
You performed the ritual.
You have ensured someone's sleep.
You have done a good job with that stonework.
You have learned the horrible family history.
You have completed the game.
You have cleaned the area of the hauntings.
You have gazed on the canvas.
You have learned a grim romance story.
You have found what was hidden.
You have made a sound.
You have learned the horrible truth.
You have learned about the weird sculpture.