Here is the full list of all 13 Pupperazzi achievements. It takes around 4-5 hours to unlock all of the achievements on Windows.
Complete the Puppypedia!
Take photos of 20 different sleeping dogs.
Complete all follower audiences.
Save 20 of your favorite photos.
Attempt to take a photo without any film 10 times.
Take 20 photos without any dogs.
Take 20 close-up photos of dogs with their tongue out.
Take 20 centered, close-up, head-on, single-dog photos.
Take 30 photos of dogs wagging their tails.
Take 20 photos of blinking dogs.
Take 10 photos in midair.
Take 30 photos while crouching.
Take photos of 20 different fashionable dogs (dogs wearing two or more accessories).