Serval kitten drawing update

here's a quick update on progress with my latest drawing of a serval kitten.This drawing once again pairs conte pierre noire pencils for the darkest tones with my usual derwent graphic pencils for the rest of the piece.the cats head is taking shape now with some areas complete including fur details whilst other areas you can clearly see are in the process of the graphite being layered to build up the required strength of tone before the details are added.