Negative Space Cutout

A. Negative space is the area around a drawing that isn't the main focus. For example, if there is a drawing of a tree, the trunk and leaves are the positive space, and everything behind the tree is the negative space.
B. After tracing the tree, I took all the sections of the drawing and put them as positive space on one side, negative space on the other. Everything that wasn't positive was negative, and everything that wasn't negative was positive.
C. If you know how much space has to be in the picture because of negative and positive space, you can scale the drawing appropriately.
D. I think that seeing negative space does enhance drawing for the reason I said in C.