Here is the full list of all 18 Aiyana achievements.
Step foot on each biome within Aiyana
Catch each type of fish
Kill at least one of each animal
Find each ore and mineral type
Learn each spell
Reach the bottom of the Lost Civilisation and deafeat the first boss
Eat a max quality meal
Equip an iron sword, spade, pickaxe and axe at the same time
Place a structure with the structure builder
Find your first Magical Gem
Have 3 or more buffs active at a time
Use a spell often enough it reaches a high level
Upgrade your Protection Beacon to reach level 10
Discover the ultra rare potion property for luck
Sleep in a fancy bed for the first time
Find and use a portal
Harvest one of each crop type after growing it yourself
Beat the Challenges at your Protection Totem