Although chiefly remembered as a canine artist due to his success depicting them, of the nineteen paintings Earl exhibited at the Royal Academy between 1857 and 1882 only two were of dogs.
Kendati dikenang sebagai seniman kanin oleh karena keberhasilannya melukis, namun dari 19 lukisan Earl yang dipamerkan di Royal Academy antara 1857 dan 1882 hanya dua adalah lukisan anjing.