<span>They differ in their approaches in the way that they they
depicted space in their paintings since Picasso, space is fragmented and
discontinuous while Hopper is known for his brilliant, clean use of color and
strong and almost treatical lighting. In addition, Hopper showed the same
dramatic light and the image is built from crosshatched lines and it is
relating to Rembrandt’s moody etchings in his black and white etchings. </span>
Not sure per month, but in a year they make around $127,800. So you could divide that by 12. Which would be 10,650 per month.
The answer is his friendship with Claude Monet.
Hope this helped <3