Shoulder to Heel

Because I haven't been consistent about my figure drawing practice, I'm relying on techniques I've learned to find where I am. It's so easy to get lost and forget to use the landmarks. So, I left the lines to illustrate how useful they were. 
Top of her left shoulder to heel; one nipple to the other; heel to bent knee are three lines I established to help me get the proportions right.
Although the pose was only 20 minutes, I feel as though I made good use of these techniques instead of aimlessly drawing and hoping for the best!