He is also well known for his use of light, sophisticated and almost transparent colors.
Arana himself defines his style as expressionism and mannerism.
The artist once explained that his alive and expressive human figures do not have any skulls because "they are receptacles of the active things in the world as is God, nature, life, whatever we want." [1]
His works are often unsettling for the degree of expression shown by his silent figures.
Most initiates to his style might find his paintings to be disturbing.
However, after an initial period, viewers of his paintings often find beauty within the figure's expressions.
Arana has exhibited his work in Tokyo, Paris, New York, Mexico City, Puerto Rico, and Spain.
In 1986, he created the Fundación Francisco Arana, an organization dedicated to foster art in young people.