Here is the full list of all 20 Immersive Poetry achievements.
Reset your Progress
Investigate the Blue Object
Leave your Journal Behind
Enter the Correct Code
Complete the Third Level
Complete the Sixth Level
Complete the Fifth Level
Complete the Fourth Level
Take a Photo with the In-Game Photo Mode
Collect 5 Poem Parchments
Complete the Second Level
Collect 3 Poem Parchments
Complete the First level
Collect 5 Groups of Mushrooms
Find your Wife's Glasses
Find the Music Box
See the Submarine
Enter the Gate with no Gate
Collect all Poem Parchments