Eight Beautiful Groups of Natural Flowers in Outlines by de la Cour: Tulips (1770) by Robert Sayer. Original from The… https://www.rawpixel.com/image/2444155/free-illustration-image-tulip-flower-botanicalFree Image from public domain license
Keizerskroon tulip, butterflies and caterpillars by Johan Teyler (1648-1709). Original from The Rijksmuseum. Digitally… https://www.rawpixel.com/image/515296/free-illustration-image-butterfly-flower-tulipFree Image from public domain license