The Bedroom (1889) by Vincent Van Gogh. Original from the Art Institute of Chicago. Digitally enhanced by rawpixel. Free Image from public domain license 
Wheat Field with Cypresses (1889) by Vincent Van Gogh. Original from the MET Museum. Digitally enhanced by rawpixel. Free Image from public domain license 
The Starry Night (1889) by Vincent Van Gogh. Original from Wikimedia Commons. Digitally enhanced by rawpixel. Free Image from public domain license 
The Postman (Joseph Roulin) (1888) by Vincent Van Gogh. Original from the Barnes Foundation. Digitally enhanced by rawpixel. Free Image from public domain license 
The Brothel (Le Lupanar) (1888) by Vincent Van Gogh. Original from the Barnes Foundation. Digitally enhanced by rawpixel. Free Image from public domain license 
Houses and Figure (1890) by Vincent Van Gogh. Original from the Barnes Foundation. Digitally enhanced by rawpixel. Free Image from public domain license 
Irises (1889) by Vincent Van Gogh. Original from the J. Paul Getty Museum. Digitally enhanced by rawpixel. Free Image from public domain license 
The Factory (1887) by Vincent Van Gogh. Original from the Barnes Foundation. Digitally enhanced by rawpixel. Free Image from public domain license 
Le café de nuit (The Night Café) (1888) by Vincent van Gogh. Original from the Yale University Art Gallery.… Free Image from public domain license 
Roses (1890) by Vincent Van Gogh. Original from the MET Museum. Digitally enhanced by rawpixel. Free Image from public domain license