The European sea sturgeon from The Natural History of British Fishes (1802) by Edward Donovan. Original from the New Yorkā¦
https://www.rawpixel.com/image/431221/free-illustration-image-illustration-sea-animals-white-public-domain-natural-history-british-fishesFree Image from public domain license
Hand drawn polar bear halftone style sticker overlay with a white border