New figure study

It's been a long time since I was last at life drawing class and I fear I'm getting rusty, so I want to get back to charcoal figure study practice to ensure I stay in some sort of shape in case I receive any more commissions.
I can't remember where I found the photograph of this pose but I was really drawn to the lighting, with those dramatic shadows across the back, the chance to practice both a front and back pose simultaneously, and the unguarded, slightly vulnerable pose. It didn't have the dramatic arching or dancer's poise that some of the others did, but just seemed very natural, almost documentary, which I found much more interesting than the more classical poses I have used before and seen elsewhere.

The final piece is A3 on paper, in Derwent charcoal pencil and grey shades compressed charcoal sticks. The mirror background is black acrylic paint and the mirror frame is C. Roberson & Co metallic pale gold acrylic paint, accented with charcoal pencils.