Burlington’s Dostie Bros. Frame Shop and gallery welcomes three members of the Tomczak family of Milton, each of whom has an artistic practice. Husband-and- wife Jim and Nancy both train their eyes on the natural world; Nancy has recently begun to expand her observational bird watercolors into mandala-like collages. Grace’s cartoon-inspired illustrations have a flair for fantasy, and a definite penchant for tentacles. Why? “Octopods and cephalopods are just fun to draw,” she writes on her website.