A quick, wet and loose wash of various blues gave me a tinted ground for this still life. Once that dried, all I had to do was paint in the shadows with a darker mix of blue. Having the image drawn out before the initial wash allowed me to leave a few spots lighter than the rest of the wash to allow for the brighter highlights. Those were accentuated a bit -- and the polka dots added -- with a little titanium white watercolor. Forget the "rule" about not using white in watercolor. The final image is the only rule that matters.