Here is the full list of all 16 I commissioned some mice 2 achievements.
Complete the game in its entirety.
Find everything hidden in the Peaceful Sketching Hangout artwork.
Find everything hidden in the Birthday Cake Time artwork.
Find everything hidden in the The School Play artwork.
Find everything hidden in the Cute Claw Machine Prizes artwork.
Find everything hidden in the Colourful Little Town Centre artwork.
Find everything hidden in the Lazy Day Off Together artwork.
Find everything hidden in the Gaming And Cooking artwork.
Find everything hidden in the Engineer At Work artwork.
Find everything hidden in the Unhealthy Living Situation artwork.
Find everything hidden in the Forgotten Toy Boxes artwork.
Find everything hidden in the Swirl Patterns artwork.
Find everything hidden in the Revision On The Sofa artwork.
Find everything hidden in the Spacious Pizza Restaurant artwork.
Find everything hidden in the Cozy Cat Flat artwork.
Find everything hidden in the Angel Museum artwork.