Very often I get rid of empty spaces on the paper, that's why i fill every square centimeter, especially the background. This is known as "horror vacui". When I draw such a picture, not the end result is important, but the process. I often spoil the picture and set it aside (never throw it away), but on DaDa it is possible to get new from the old, "bad" image, without using rubber.
To tell the truth, there is no spoiled picture, especially among SoulDoodles. I do not even care about negative reviews any more.