Here is the full list of all 16 LEAVES - there are The Journey achievements.
Played the game without interruption
Didn't need any help
Opened 3 doors in Eggtown
Found 15 inhabitants
Found 10 inhabitants
Opened the Heaven's Gate
Waited for the poison to wear off
Set the masks correctly
Found 5 inhabitants
Used the Travelstone 3 times
Shooed away the armadillo 3 times
Set the clock
Opened the portal
Vanquished the monster
Found the magnifier
Upset the Treefruities