Here is the full list of all 16 I commissioned some bunnies 5 achievements.
Complete the game in its entirety.
Find everything hidden in the Pigs On Chariot Roof artwork.
Find everything hidden in the Fishy City artwork.
Find everything hidden in the Farmer Family Fields artwork.
Find everything hidden in the Beneath The Water artwork.
Find everything hidden in the Robotic Campfire artwork.
Find everything hidden in the Creativity Collage artwork.
Find everything hidden in the Huge Claw Machine artwork.
Find everything hidden in the Kitchen Cauldren Brewing artwork.
Find everything hidden in the Open Air Library artwork.
Find everything hidden in the Messy Magician Hangout artwork.
Find everything hidden in the Friendly Afternoon Lunch artwork.
Find everything hidden in the Underground Storage artwork.
Find everything hidden in the Cluttered Shelves Scale artwork.
Find everything hidden in the Mech Ship Battle artwork.
Find everything hidden in the Quantum Computer Interior artwork.