I loved doing this one today. These are my dead trees in winter, minus many twiggy branches. I loved how the light was filtering through them creating such great shadows.
I am very fond of this surface but will have to make a few minor changes when using it next time - like mount it on a board...as it warps a little when you seal it with clear gesso. It's very papery, too, Tape on top is very hard to remove without tearing the surface. I used gouache to paint the trees and pastel pencil on top.