Portrait of William Burton Conyngham by Anton Raphael Mengs https://www.rawpixel.com/image/14266583/portrait-william-burton-conyngham-anton-raphael-mengsFree Image from public domain licenseHuman skull vintage illustration. Remixed by rawpixel. https://www.rawpixel.com/image/10870220/image-face-person-artView licenseTaste, plate four from The Five Senses by Jacob van der Heyden https://www.rawpixel.com/image/8983889/taste-plate-four-from-the-five-senses-jacob-van-der-heydenFree Image from public domain licenseFeeling, plate five from The Five Senses by Jacob van der Heyden https://www.rawpixel.com/image/8979859/feeling-plate-five-from-the-five-senses-jacob-van-der-heydenFree Image from public domain licenseThe Smooth Leaved Green Antigua Pine by various artists/makers https://www.rawpixel.com/image/9086970/the-smooth-leaved-green-antigua-pine-various-artistsmakersFree Image from public domain licenseA young lady recommending a specific doctor to her aunt, who rejects her idea because of his outrageous dress-sense. Wood… https://www.rawpixel.com/image/14011901/image-cartoon-face-personFree Image from public domain license