Anna Ridler and Caroline Sinders’ collaboration Cypress Trees: Fragmentation premieres as a façade projection at M Museum in Leuven, Belgium, as part of “(Un)Holy Light.” The infinite treescape generated from thousands of photographs taken by the artists draws attention to Louisiana’s vanishing wetlands, whose ancestral Cypress trees are vital to the state’s coastline. “The more they disappear, the more erosion accelerates,” notes curator Juliette Bibasse.