On the left is the small thumbnail value sketch I used for designing the painting. I am working on Kitty Wallis museum grade sanded paper 9" x 12"
I used hard pastels to block in the main shapes. I then washed the painting down (one color at a time) with alcohol to create an underpainting.
I blocked in the large shapes with the darkest value I see in each shape.
I layered on mid and finally light values.
The finished piece is actually a little darker and more nuanced than this image, it's tough to photograph pastel accurately.