You foreshorten as though you never used the model, and you've caught Kami's pasty way of dealing with flesh in shadow.
Of course he could, if he had cared to do so; for if you can foreshorten a limb or a hand, much more a tree branch.
You can draw the rounding line of a table in perspective, but you cannot draw the sweep of a sea bay; you can foreshorten a log of wood by it, but you cannot foreshorten an arm.
