There is no complete list of Madeline Green’s works currently available, but they number in excess of 100.[19] She was a versatile artist who used a variety of techniques including aquatint, charcoal, drypoint, oil, and watercolour. After a period of little interest, her oil and watercolour paintings now change hands at auction with increasing frequency, at prices in the thousands and sometimes tens of thousands of pounds sterling. (https://en.wikipedia.org/wiki/Madeline_Green)