Jose Guadalupe Posada (1852-1913) is the Mexican engraver, illustrator and artist you are referring to.
Cavemen chose animals as their Primary subject.
They represent death in Mexican culture, but not as a scary creature. The most well known character of this kind is the Calavera Catrina, or "elegant skeleton" first created by Mexican illustrator and artist Jose Guadalupe Posada, around 1910.See the related links for some examples.
Mexican would be since it is derived from Mexico, a proper name. Artist would not be capitalised.
The iconic Catrina figure was created by Mexican artist José Guadalupe Posada in the early 20th century. Posada's calaveras (skeletons) depicted Catrina as a dapper female skeleton, symbolizing the Mexican celebration of Día de los Muertos (Day of the Dead). Later, the image was popularized and transformed by artist Diego Rivera in his mural "Sueño de una tarde dominical en la Alameda Central," where Catrina became a prominent cultural icon.
Frida (2002)
Both were Mexican citizens.
Diego Riviera
Yes, it was.
An artist is a painter, sculptor, etc. His subject is the thing, or person or scene etc. that he paints, sculpts, etc.
Jose Guadelupe Posada was a Mexican artist and cartoonist illustrator.
she shot to death selena perez a famous tejano mexican artist
José Guadalupe Posada was a Mexican artist, he specialized in landscape.