It's great to practice drawing realistic figures of women (young, old, short, tall, skinny, large, normal). This picture shows some areas to focus on. When drawing a woman's shoulder, they slope and they are not angular. Notice how her body spans from her feet to her hips. Her arms naturally have a curve to the...they are not straight up and down while down. The 2nd picture shows the back, bottom, and back of legs do not make a straight line. Notice how her buttocks touch the line but the rest of her body doesn't, it slants forward. And when drawing the bust, use a rounded curve. The 3rd picture shows her back. Notice how the shoulders slope down and her buttocks isn't in a straight line. Check out her hips...there's some meat on them. Notice how it interacts with her sport pants.