Oils

Berenice's work developed from representational to semi-abstract, and she soon established her style in purest abstract form starting with tiny delicate Persian Garden designs, miniatures in naturalistic colours that become abstract etchings: Bakhtiari, The Sultan's Garden, Shirvan Kabistan II, Hachly Moons, Little Squares, Saruk, which were exhibited in 1969.

From 1973 her oils on canvas also began to develop into conceptual abstractions. From discernible figures worked in flowing brush strokes her forms became multi-faceted describing movement in hundreds of colour mutations and shapes. Sydney's later paintings were developed in series, based on specific organic forms, such as leaves (see illustration), that provided a dynamic structural frame for the buildup of paint across large canvasses. Colour combined with vortex-like compositions, starting from a central point to expand outwards, enabled the artist to explore the kinesthetic qualities of visual experience in a way that relates to Bridget Riley's later work.