Ontwerp voor een dekselbeker (c. 1845 - c. 1855) by Frédéric Jules Rudolphi https://www.rawpixel.com/image/13794075/ontwerp-voor-een-dekselbeker-c-1845-1855-frederic-jules-rudolphiFree Image from public domain licenseThe Outer Court, from the Top of the Fore-Hall Stair. by Thomas Annan https://www.rawpixel.com/image/14317581/the-outer-court-from-the-top-the-fore-hall-stair-thomas-annanFree Image from public domain licenseArchitectural Project for the Church of the Madeleine by Etienne Louis Boullée https://www.rawpixel.com/image/14264223/architectural-project-for-the-church-the-madeleine-etienne-louis-boulleeFree Image from public domain licenseFlower Beds in Holland (1883) by Vincent Van Gogh. Original from The National Gallery of Art. Digitally enhanced by rawpixel. https://www.rawpixel.com/image/930535/bulb-fields-van-goghFree Image from public domain licenseBouquet of Flowers in a Vase (1890) by Vincent Van Gogh. Original from the MET Museum. Digitally enhanced by rawpixel. https://www.rawpixel.com/image/537414/free-illustration-image-van-gogh-still-lifeFree Image from public domain license