She mastered drypoint, aquatint, and monotype processes, combining them to produce superb prints – as well as wonderful pastel paintings.
Dreyfus
The evolution of her painting in oils and pastels, and the start of her print-making – which was to become so important in her later work.
In the years to 1879, she became skilled in different media, including pastels, and her style transformed to Impressionism.
The Eclectic Light Company 