An Alcove in the Art Students' League by Charles Courtney Curran https://www.rawpixel.com/image/9010170/alcove-the-art-students-league-charles-courtney-curranFree Image from public domain licenseGrotto from the Gardens of the Farnese Palace at Caprarola, Preparatory Study for the 'Oeuvres Complètes de Jacques Barozzi… https://www.rawpixel.com/image/9331075/photo-image-hand-art-watercolorsFree Image from public domain licenseGermany, from Pictures of Extra Articles and Visitors to the Exhibitionca (1851) by Richard Doyle. Original from The MET… https://www.rawpixel.com/image/2260303/free-illustration-image-victorian-protest-richard-doyleFree Image from public domain licenseTwenty Drawings Depicting the Early Life of Taddeo Zuccaro by Federico Zuccaro https://www.rawpixel.com/image/14260128/twenty-drawings-depicting-the-early-life-taddeo-zuccaro-federico-zuccaroFree Image from public domain license