Pushing to expand, she improvises, creating a lush repertory of images, luminous fields, shimmering orbs, quivering lines and fields of color.Going a step farther for this show, Hallinan is painting on round (Tondo) and diamond (Rhombus) panels, exploring the ways that these external shapes affect her work. With multiple pieces in process at the same time, each painting transforms the next, informing a continuously evolving body of work. "One More,"