Here is the full list of all 11 Zen Bound 2 achievements.
Learn to let go after attaining Perfection
Complete 10 Trees
Complete all levels at 100%
Tie down every flying thing
Blow up every nail bomb on the Tree of Focus
Collect 200 flowers
Blindly refuse defeat
Use all rope but no paint must touch the object
Blow up all nail bombs on the hedgehog
Wrap an object to 100% and then unwind back to 0%
Complete the last level of the Tree of Introduction