“The newfound interest there is part of a larger cultural and economic revival. It wasn’t long ago that moving abroad or catering to outsiders’ perceptions of their country was the only way for artists here to survive. But as the economy has surged — diversifying from oil into manufacturing, telecommunications and a thriving film industry to give Nigeria the biggest gross domestic product in Africa — so has interest in fashion, music and art. That has fueled a rise in the number of galleries and auction houses. It has also allowed many artists to make a living at home.”