Here is the full list of all 21 Evergarden achievements.
Create a winged armadillo
Create a winged rabbit
Energize 2 pillars of light
Remove a pest through friendship
Create 50 monoliths
Complete a daily mosaic
Create a tier two monolith
Connect two monoliths
Activate a monolith
Energize a pillar of light
Find a hidden gem
Score 40,000 Points
Awaken Aquila
Create 5 patterns in one turn
Score 20,000 Points
Create 4 patterns in one turn
Score 80,000 Points
Energize 3 pillars of light
Find the Keeper
Create 2 patterns at the same time
Create 3 patterns at the same time