Most times when I have to do a value comp it means I open up Photoshop.  But with my recent work on my children’s book illustrations I decided to go totally analog.  Here are some pictures I snapped while working.  They are done in charcoal, graphite and Ebony Pencil.
More to work on these to come.

P.S. if you have any great connections in the publishing world I’d LOVE to hear from you 🙂