Do we have to draw a Background first

Answer 1

I paint the background first. I find it easiest to see what I paint after. Sometimes I retouch when the main subject is finish but it's rare. I tried to do it after the main subject but it was a kind of disaster.

Answer 2

I cover the canvas, first, with areas of different colors. Then I put patches of gesso and a new layer of color. Superposing two colors, you get a third. In places where there are the gesso patches, the second color does not mix with the first. The result is a canvas covered in many colors.

Answer 3

 

Half Completing Background First

Starting and half completing the background is better for me, and then focus on the foreground till I'm satisfied that the overall picture will be better.

Answer 4

 

Background-Middleground-Foreground

I suggest to work on background first. Painting is always layering. The same process as you set up your still life; you have to find a good background (place) first before setting the middle ground (subject) then the foreground (the subject) towards the viewer.