Snake by Kōno Bairei (1844-1895). Digitally enhanced from our own original 1913 edition of Barei Gakan. https://www.rawpixel.com/image/459419/free-illustration-image-snake-japan-serpentFree Image from public domain licenseSnake vine (Dillenia scandens) from Traité des Arbres et Arbustes que l’on cultive en France en pleine terre… https://www.rawpixel.com/image/568760/snake-vine-plantFree Image from public domain licenseSnake's head illustration from Les liliacées (1805) by Pierre-Joseph Redouté. Original from New York Public… https://www.rawpixel.com/image/501586/free-illustration-image-flower-public-domain-floral-snake-lilyFree Image from public domain licensePunctulated Snake-head (Ophicephalus punctatus) from Ichtylogie, ou Histoire naturelle: génerale et… https://www.rawpixel.com/image/938934/ophicephalus-punctatusFree Image from public domain license