Twist

 This is my favorite of the session and it was the first pose of the night (sans the gesture poses).  In my  eyes, it all went downhill for me from this point.

Knees, shins and a little blue book

 I wasn't enamored with this pose so I just focused on the knees and the shadows.

Shadows and shapes

 Ran out of (say it with me) time.  This had a chance to be a pretty nice sketch.

45 minutes (or thereabouts)

 This was a lost opportunity.  I was having so much fun with manipulating the shadows that I didn't pay as close of attention to the basics.

Gestures with Patience

Scribble, scribble, scribble...
 

As per usual, the long pose

 

I was thoroughly enjoying the beautiful shadows and how informed the shapes and mass of the figure.  Really a nice pose to work from.

Fifteen minutes again

This one deserved more time.  I would love to have gotten to her head and neck in a more meaningful way.