Upon returning to America, Morse established himself as a prominent painter, creating works that showcased his technical skill and attention to detail. His most notable artworks include 'The Flag of the United States' (1837), which features an early example of his use of the American flag, and 'Gallery of the Louvre' (1824), a painting of the famous museum in Paris.

Morse's artistic style was characterized by its realism, attention to detail, and emphasis on capturing the nuances of light and shadow. His contributions to art are multifaceted, as he not only created visually stunning works but also helped shape the course of American art through his innovative use of color and composition.

As an inventor, Morse is best known for developing the telegraph, a technology that revolutionized long-distance communication and had a profound impact on modern society. Through his artwork and inventions, Morse left an indelible mark on American culture and continues to be celebrated as one of the country's most influential artists.