South African retrospective exhibition honors the colorful work of artist Esther Mahlangu

JOHANNESBURG — A boldly patterned BMW stands at the entrance of the Wits Arts Museum in the vibrant Johannesburg neighborhood of Braamfontein.Its bright geometric shapes are part of 89-year-old South African artist Esther Mahlangu ’s unmistakable style. The car is the centerpiece of an exhibition honoring her and her work.The BMW, commissioned by the German…