Gabriella began painting at an early age under the tutelage of her father, Clifford Possum Tjapaltjarri, one of the most famous of the founding group of painters who worked at Papunya during the 1970s and 1980s. She was just 16 years of age when she won the Alice Springs Art Prize in 1983. Six years later she received a grant from the Australia Council for the Arts which not only helped her to develop her recognisable painting style, but also brought her work to the attention of galleries and collectors. Since that time Gabriella has been one of Australia's most successful independent Aboriginal artists. Her work featured in Jamie Drury's Gold Medal winning entry in the Chelsea Flower Show and her work now hangs in the Royal Collection alongside that of her father. At the 2014 Melbourne festival her work was used to decorate a tram as part of a major public art project called Melbourne Art Trams and two years later images of her paintings were projected onto the Sydney Opera House during Vivid.