In the past few weeks we have concentrated on the lower limbs of the human form. We were to sculpt the lower leg muscles on to our mannequins and then use this new visual knowledge while drawing. Once one has an understanding of the muscles that make up the leg, it becomes much easier to draw it.  I can see now how the thigh protrudes forward and tapers in towards the knee and then the calf extends beyond the knee joint in the opposite direction (dorsal) and tapers towards the ankle. 

More recently we have done a longer study of the foot and ankle.  I spent a lot of time trying to figure out toes because there are so many different planes on one toe it can be confusing.