&nbsp;&nbsp;&nbsp; Art Expressions Gallery of San Diego is presenting an exhibition of portraits, botanicals, and nudes by Imogen Cunningham, one of the most influential photographers of the 20th&nbsp;century, now through June 11. &nbsp;&nbsp;&nbsp; The works in the exhibition span her 70-year career. They range from a soft-focus almost nude self-portrait photographed in a secluded part [...]