Here is the full list of all 15 A Tale for Anna achievements.
Gain control over all the elements.
Acquire the Air element.
Clear the path to the Tree of Life.
Fix the time flow.
Make a sunbeam.
Play a game of chess.
Restore the celestial balance.
Draw the lost key.
Wake up Ron.
Cleanse the stream of ink.
Find Zoe's hideout.
Grow a magic beanstalk.
Launch the boat.
Find the spell book.
Use the bellows to capture the Shadow.