Here are several images that feature a strong shadow shape.
Many of them offer an opportunity to exaggerate color.
Some may raise the question of how softening some edges would change the feeling.
Others might invite just painting the shadow shape.
In other words, you can use the poses as starting points, inventing, simplifying or exaggerating elements of the image as you please.
Simply copying the paintings and photos is a fine route to take.
Try introducing extra color in the extremities (feet, hands, knees, head).
What if you do the drawing last, instead of first (Shape First, then Line, if necessary)?
Light, middle, dark.