Before 1450, Italian Renaissance humanism had little influence outside Italy. From the late 15th century (1400s) the ideas spread around Europe. ... Writers and humanists of the Northern Renaissance were greatly influenced by the Italian Renaissance model and were part of the same intellectual movement.
I believe the correct answer is: “Las Meninas” by Diego Velázquez.
John Singer Sargent's technique of applying paint in thin
layers was influenced by the “Las Meninas”, a painting by Diego Velázquez, the
leading artist of the Spanish Golden Age. Sargent painted a small-scale copy of
the painting “Las Meninas”, after which he painted a homage to the painting in
his “The Daughters of Edward Darley Boit”.