Here is the full list of all 10 The Mind of Marlo achievements. It takes around 0-1 hour to unlock all of the achievements on Windows.
Defeat All Shapes.
Make Marlo perform.
Start The Life of Linda.
Find hidden photo.
Call Dad.
Linda Smoking On The Toilet.
Put Cactus in Bed.
Put Toilet Roll in the loo.
Finish Game.
Examine Linda's self potrait