Calavera Oaxaqueña by José Guadalupe Posada. This is most likely a reprint from the original plate, which was used here amongst others. Calaveras (skulls) are connected with the Mexican Día de los Muertos, and Posada was the acknowledged master of the imagery of calaveras. This image is named Calavera Oaxaqueña (the skull from Oaxaca), likely after the rural get-up of the main figure.
"The dread of something after death –
The undiscover'd country, from whose bourn
No traveller returns." -- William Shakespeare
Resources about death and dying from many different perspectives.