Watercolor is a familiar medium. The paint sets are portable and affordable, and many of us have mixed a little water with the hard, dry cakes of pigment to brush color on a modest sheet of paper. The medium’s immediacy has delighted everyone from children to virtuoso professionals. But if getting started is easy, getting better takes extraordinary patience and practice. This exhibition features a selection of watercolors by American artists from Mia’s collection. Chosen for their variety of approaches, and arranged to “speak” to one another with shared content or styles, these works brim with lyrical surprises and inspiration.