"Rembrandt never visited Italy but by the time he left his native Leyden to settle in Amsterdam in 1631, he had already been exposed to the latest developments in Baroque painting. The Dutch followers of Caravaggio had ensured that the thunderous use of light and shade and dramatic figures filling the picture surface had become familiar, as had the fluid, vigorous brushwork of Rubens and the thirst for grand, painterly illusions. Like Rubens, Rembrandt would have noted that Titian in his late work had gone in search of more reflective moods and discovered a new and glorious freedom in his brushstrokes.
"Of all the Baroque masters, it was Rembrandt who evolved the most revolutionary technique and who seemed to grow into the Italians' spiritual heir. By the middle of the 1630s he had long since abandoned conventional Dutch smoothness and his surfaces were already caked with more paint than was strictly necessary to present an illusion. He was weighing his sitters with jewelry solid enough to steal, vigorously modelled with a heavily loaded brush. Where others needed five touches he was using one, and so the brushstrokes had begun to separate and could sometimes only be properly read from a distance. The exact imitation of form was being replaced by the suggestion of it: to some of his contemporaries, therefore, his paintings began to look unfinished. It was from the Venetians that he had learned to use a brown ground so that his paintings emerged from dark to light, physically as well as spiritually. Yet, despite a palette that was limited even by seventeenth century standards, he was renowned as a colorist for he managed to maintain a precarious balance between painting tonally, with light and shade, and painting in color. Just as form was suggested rather than delineated, so the impression of rich color was deceptive.
"He worked in complex layers, building up a picture from the back to the front with delicate glazes that allowed light actually to permeate his backgrounds and reflect off the white underpainting, and generously applied bodycolors which mimicked the effect of solid bodies in space. Never before had a painter taken such a purely sensuous interest and delight in the physical qualities of his medium, nor granted it a greater measure of independence from the image."
- From "Techniques of the Great Masters of Art"