Spring by Joseph Rubens Powell (1835–1871) Original from The National Gallery of Art. Digitally enhanced by rawpixel. https://www.rawpixel.com/image/9298669/image-cloud-flower-artFree Image from public domain licenseStudy of Arms for "The Cadence of Autumn" (1905) by Evelyn De Morgan. Original from The Met Museum. Digitally enhanced by… https://www.rawpixel.com/image/2458176/free-illustration-image-hand-art-vintageFree Image from public domain licenseStudy of clouds, Rome, Italy by Francis Augustus Lathrop. Digitally enhanced by rawpixel. https://www.rawpixel.com/image/9298559/image-background-cloud-artFree Image from public domain licenseShore at Pwllheli, N. Wales by George Elbert Burr. Digitally enhanced by rawpixel. https://www.rawpixel.com/image/9298555/image-cloud-art-watercolourFree Image from public domain licenseStudy of clouds, Rome, Italy by Francis Augustus Lathrop. Digitally enhanced by rawpixel. https://www.rawpixel.com/image/9298794/image-cloud-art-watercolourFree Image from public domain licenseLandscape with Rising Sun, December 1, 1828, 8:30 a.m. by Joseph Michael Gandy. Digitally enhanced by rawpixel. https://www.rawpixel.com/image/9298810/image-cloud-art-watercolourFree Image from public domain licenseSita (1893) by Odilon Redon. Original from the Art Institute of Chicago. Digitally enhanced by rawpixel. https://www.rawpixel.com/image/599308/sita-odilon-redonFree Image from public domain licenseHead within an Aureole (1894—1895) by Odilon Redon. Original from the J.Paul Getty Museum. Digitally enhanced by… https://www.rawpixel.com/image/599292/head-within-aureole-odilon-redonFree Image from public domain license