Abstracting the body with a set behind in a drawing involves simplifying the shapes, lines, and forms of the body and the set. Geometric shapes and curves are rendered in a minimalistic, and abstract way by emphasizing certain lines and shapes.
When expanding a drawing to a larger oil painting, there are several things to consider. First, you should think about the composition of the painting, and how the elements of your drawing can be translated into a larger scale. You should also take into account the colors and values of the drawing, as they will need to be translated into the painting as well. Finally, it is important to consider the texture of the painting and how it should be applied to the canvas. Depending on the complexity of the drawing, you may need to make some adjustments to the painting to ensure that it looks balanced and cohesive.