His artwork is marked by an attention to detail and a deep connection with the American landscape, which he often depicted through sweeping vistas and intimate portraits of nature. Throughout his career, Welch's artistic signature was evident in his ability to balance realism with a sense of poetic expression, creating works that not only reflected the natural world but also conveyed the artist's own emotional response to it.

His notable works include [insert specific artworks], which showcase his mastery of color and composition. Despite passing relatively unknown during his lifetime, Welch's legacy has been reevaluated in recent years, with art historians recognizing him as a significant figure in the development of American Realism.

Today, his artwork continues to be celebrated for its beauty, technical skill, and contribution to the rich tapestry of American art.