6 Art Gallery Shows to See Right Now Gerald Jackson’s collages; Precious Okoyomon’s reimagined ecosystem; Damien Davis’s sculptures; Beverly Buchanan’s “shacks”; and more. Daisy May Sheff’s “Stiff and Tawny Wavelets,” from 2021, at White Columns.Credit...Daisy May Sheff April 28, 2021 Through May 15. White Columns, 91 Horatio Street, Manhattan, (212) 924-4212, whitecolumns.org. In its pairings of large and small shows, White Columns has come up with some extraordinary combinations, but its present one is especially excellent. The larger exhibition reintroduces the veteran ar...