So with this piece, I wound up using quite a lot of colored pencil, but not from the beginning. I have a dark blue-ish gray that's a great not-quite-black color, and I use it often for eyelashes and eyebrows. In this case, I wanted a darker value to expand the value scale for her hair, and so I dug into a cheaper set of watercolors for a black, and I got too liberal with it, using it for her hair as well as the shadow between her hair and her neck. I tried to correct with colored pencils, and once I started using them, I couldn't put them down, dammit. I love the control they give me - and I definitely don't feel in control with watercolors!