Realism, however Francophile and subtly handled, was not to be enough for the mature Grant,
From the mid.1960s.His work become increasingly abstract. A series of paintings based on the Battle of Azincourt, filled with stylized post­Cubist personages and all-over pattern, led to a group of paintings based on dancers and other figures in interiors. Grant was already in the process of adapting a form of expressive, intuitive abstraction, taken in part from Gauguin, Van Gogh and the Fauves.
In the early l970s,the palette and structure of these semi-abstracted paintings owe more to American painters such as de Kooning The figures are dehumanized, stylized, motif and ground less differentiated_ The starkly beautiful results (such as Red Fluffy Hair c1975) are transitional but impressive.

Grant was at the top of his profession and a groundbreaker in his explorations of mixed media techniques.

The paintings and prints are descriptions of places he loved and constantly returned to.

One could describe him as a French reflection of the St. Ives School where painters explored the landscape in similar fashion, as they still do.

There is a wonderful sense of freedom in these images, and a great joie de vivre. Grant was a supreme colourist. Every home should have one.