I know about Helen Frankenthaler (1928-2011) from reading about how she influenced Morris Louis. This work, “Nature Abhors a Vacuum (1973)” is gorgeous and I can see how it can be inspiring to other painters. The colors, the contrast and freedom in the shapes are all masterful. Here is a link to pictures of her work and her working – I find it inspiring to see the spaces that artists work in. There is also a reference to a great quote on that site:
There are no rules. That is how art is born, how breakthroughs happen. Go against the rules or ignore the rules. That is what invention is about.