In the painting First Steps, after Millet, by artist Vincent van Gogh, what are the artist's techniques in terms of media or style?

Van Gogh's painting First Steps was
completed while Van Gogh was in the asylum voluntarily in Remy, France, in the fall of
1889-1890.  Since he was unable to go out through the countryside and paint as he
customarily did, Van Gogh used prints, reproductions and photographs as subjects.  For
this painting, Theodore Van Gogh sent him a black-and-white photograph of Millet's
First Steps, a pre-Impressionist realistic painting in black conte
crayon on tan paper.

Regarding technique, Van Gogh placed
more distance between the subjects of his oil painting on his much larger canvas as well
as giving it color in his Post-Impressionist style with its bold brush strokes.  In
href="http://www.metmuseum.org/toah/works-of-art/64.165.2">"improvising" or
"translating" the work of Millet, Van Gogh pays homage to the master;
incidentally, Van Gogh also reveals much about the way that he judges himself and his
own ability.