08-30-2016, 02:10 PM
Good start to your sketchbook :) Something that will help you out a lot is being able to separate your lights and darks, and then making sure those separate values don't get mixed. I would recommend checking out the Notan study group for some practice on this. Being able to simplify things into just two values will prove invaluable.
http://crimsondaggers.com/forum/thread-7701-page-3.html
http://crimsondaggers.com/forum/thread-7701-page-3.html