Here is the full list of all 15 Inked: A Tale of Love achievements.
Collect all canvases
Complete the game again
Complete the game
Complete the Chaos
Completed the Factory
Complete the Frostland
Complete the Desert
Complete the Swamp
Collect 27 canvases
Complete the Water Towers
Complete the Forest
Complete the Riverland
Complete the Sea of Simple Geometry
Collect a canvas
Complete the Prologue