I did my boot with Prismacolor (both watercolor and soft core pencils).  I have not used the watercolor pencils before, so they were a bit tricky to figure out, but I just hit rewind many times to watch what you did.  Though it doesn't look like there are many colors used here, I used a lot of greys, browns, beige and white.  I am working really hard to see value in my photo reference and not color, it doesn't come natural to me at all.  I know I have a long way to go, but this turned out better than I thought it would.  Thank you for the class.