Songbird on blossom branch (1900 - 1936) by Ohara Koson (1877-1945). Original from The Rijksmuseum. Digitally enhanced by… Free Image from public domain license 
White Plum Blossoms and Moon (1755) illustration by Ito Jakuchu. Original from The MET Museum. Digitally enhanced by… Free Image from public domain license 
Vintage illustration of Harlequin published in 18th century. Original from New York public library. Digitally enhanced by… Free Image from public domain license 
Vintage Illustration of decorated wash basins published in 1884 by J.L. Mott Iron Works. Original from New York public… Free Image from public domain license 
Flycatchers on a nandina bush (1925 - 1936) by Ohara Koson (1877-1945). Original from The Rijksmuseum. Digitally enhanced by… Free Image from public domain license 
Birds by William Morris (1834-1896). Original from The MET Museum. Digitally enhanced by rawpixel. Free Image from public domain license 