Then we tried a 10 minute pose...

 ...and that went so well that we then tried...

Some five minute sketches

 We didn't want to throw her into the deep end right off the bat so we started with some shorter poses to let her get used to the game.

Gestures of Miss M, our newest model

It's always a toss-up when we have a model who has never posed before.  In this case it was a wonderful find and Miss M knocked it out of the park.  Enjoy the gestures from last night.
 

A failed experiment

 I bailed on my concept at the last minute and dropped in some shadows on the right arm and on the back.  I had spent the first 35 minutes or so intending the paper color substitute for some of the larger shadows, hence the hard lines across her back and right arm.  I should have stayed the course and now I'm left with wondering what could have been.  I may take them out (as best I can) and see what happens.

The third 15 minute sketch

 I decided to go back to charcoal for this one and I'm glad I did.  Lost edges and shadows are so very powerful in straight black and white.  I was really enjoying this one and would love to have had an additional 5-15 minutes to really work the shapes and create real mass.  Still, probably my favorite effort of the session.

The second 15 minute sketch

 This was rounding into an okay study of Samm's face.  As you can see, I grabbed the wrong conté to shade her cheek but that's how it goes when you're not paying complete attention.

The first 15 minute sketch

 Lost edges and cast shadows.  The story of my life.