Hello!
This post may include affiliate links.
Here are the cats with the fishes.
Handmade of polymer clay brooches.
I make they myself!
Cats brooches
https://www.etsy.com/listing/556562020
Cat with blue fishes
https://www.etsy.com/listing/571614063
Cat with dark blue fishes
https://www.etsy.com/listing/556562020