When your foreshortening one thing you have to keep in mind is that whatever is closest to the screen will be bigger relative to the body, and whatever is farthest away from the screen will be smaller. That includes the limbs as something moves farther away from the screen. You will see it start to shrink in size. Notice how the arm closest to the screen starts to get more narrow near the base of the body because it is farther away. You don’t want your limbs to be the same size. If something is closer to the screen hope this helps and let me know if you have any questions.