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.
My wife's shoe obsession keeps me in still life subjects. I'll have to hit my daughter's closet when she's home from school. I think she has more shoes than my wife.