just the labor involved in creating the layered richness of the imagery in this chiaroscuro of madness and light is astonishing . 
(ROOT (S (NP (NP (RB just) (DT the) (NN labor)) (VP (VBN involved) (PP (IN in) (S (VP (VBG creating) (NP (NP (DT the) (VBN layered) (NN richness)) (PP (IN of) (NP (NP (DT the) (NN imagery)) (PP (IN in) (NP (NP (DT this) (NN chiaroscuro)) (PP (IN of) (NP (NN madness) (CC and) (NN light))))))))))))) (VP (VBZ is) (ADJP (JJ astonishing))) (. .)))
(ROOT (S (NP (NP (RB ) (DT ) (NN )) (VP (VBN ) (PP (IN ) (S (VP (VBG ) (NP (NP (DT ) (VBN ) (NN )) (PP (IN ) (NP (NP (DT ) (NN )) (PP (IN ) (NP (NP (DT ) (NN )) (PP (IN ) (NP (NN ) (CC ) (NN ))))))))))))) (VP (VBZ ) (ADJP (JJ ))) (. )))