Another charcoal done and added to the list awaiting painting.  On this jackrabbit I not only punched up the lights with a white colored pencil but I also tried pushing in with a black colored pencil to heighten the contrast in a few spots and add in a little post charcoal and fixing detail.  The colored pencils are working great but I have found that you have to have a decently waxy colored pencil to apply this technique.  I tried using a colerase pencil but it didn’t build up on the surface all that well.  I imagine the same would be true with watercolor pencils though I have not tried them yet.  The traditional colored pencils work well though.  I might find myself employing a full range of grays in the future but for now the white and black are working well.