After Hurricane Katrina, there was a second flood — of images from the disaster, art inspired by the disaster, songs singing the disaster. But comparatively few actual reflections from the people who lived it. Look for the difference between lived experience and reported experience as the Rentz Gallery, with the Richmond Montessori School, presents “Surviving Katrina,” works by hurricane victims, like Kathryn Taylor Gray’s “Hanging Around Blues,” above, opening with a reception April 20, 6-9 p.m. Through April 30. 358-5338.