She was active in Philadelphia and exhibited her work in the city at the Pennsylvania Academy of the Fine Arts and in New York and Washington, D.C. Greenwood painted portraits, especially of young women, floral still lifes, and landscapes. She painted with oils on canvas and over her career her brush strokes became more free and expressive.
Greenwood was involved in Philadelphia activities and exhibited her work at the Pennsylvania Academy of the Fine Arts and in New York and Washington, D.C. She focused on portraits, floral still lifes, and landscapes. Throughout her career, she painted with oils on canvas, and her brushwork became more spontaneous.