Art Galleries: What’s on exhibit around Boston
Mark Cooper’s hot-hued collages overlap in a riot of images
Critic Cate McQuaid recommends area art gallery shows to visit, including: Mark Cooper: More is More, at Samson, 450 Harrison Ave., through Dec. 10. 617-357-7177, www.samsonprojects.com. George Nick: The World is Flat (Until You Paint It) at Gallery NAGA, 67 Newbury St., through Dec. 17. 617-267-9060, www.gallerynaga.com. Catherine McCarthy: Flower Arranging at Ellen Miller Gallery, 38 Newbury St., through Dec. 7. 617-536-4650, www.ellenmillergallery.com.