DeSoto's Discovery of the Mississippi River by Kurz & Allison https://www.rawpixel.com/image/8992660/desotos-discovery-the-mississippi-river-kurz-allisonFree Image from public domain licenseMorphine Addict, from The Album of Original Prints from Galerie Vollard (Morphinomaniac, from L'album d'estampes originales… https://www.rawpixel.com/image/9030020/image-paper-cartoon-frameFree Image from public domain licenseNew Year's fireworks Facebook post template https://www.rawpixel.com/image/14880848/new-years-fireworks-facebook-post-templateView licenseHamlet Pursuing His Father's Ghost, plate 2 from Hamlet by Eugène Delacroix https://www.rawpixel.com/image/8979749/hamlet-pursuing-his-fathers-ghost-plate-from-hamlet-eugene-delacroixFree Image from public domain license