Thinking of the Amazon

“Moonlight Burning’’ (photograph), by Richard Alan Cohen, in a group show at Galatea Fine Art, Boston, through Sept. 1

Landscapes on a hull

Photo by Richard Alan Cohen at the Westport (Mass.)  Free Library all this month in a show with David Feigenbaum sponsored by the Westport Art Group. Mr. Cohen presents abstract landscapes seen in waterline residues and corrosion on the hulls of boats.