Here is the full list of all 16 I commissioned some cats 6 achievements.
Find everything hidden in the Cafe Date artwork.
Find everything hidden in the Briefcase Town artwork.
Find everything hidden in the City Admiration artwork.
Find everything hidden in the Off Road Mechanics artwork.
Find everything hidden in the Sofa and Mess artwork.
Find everything hidden in the Mech Suit Assembly artwork.
Find everything hidden in the Underground Machine Testing artwork.
Find everything hidden in the Spent All Day Tidying artwork.
Find everything hidden in the Summer Shopping Street artwork.
Find everything hidden in the Boy And Unicorn artwork.
Find everything hidden in the Autumn Scrap Yard artwork.
Complete the game in its entirety.
Find everything hidden in the After Hours Bar artwork.
Find everything hidden in the Mini Town Folk artwork.
Find everything hidden in the Aurora Borealis artwork.
Find everything hidden in the Western Boys Night artwork.