So I wanted to try an experiment with my sketching so it would shake things up a bit. How I see things. I started the drawing in white and using whites for my blacks, blacks for highlights, etc. I wanted to test how I actually perceive the faces and the form.
Then I inverted the artwork to see how it would look as a 'normal' drawing. I'm pretty happy with how it turned out.
I used the photo here for reference.