Photographer Nikki S. Lee’s black-and-white works (on view at Sikkema Jenkins & Co. through January 10) are far tamer than her usual color self-portraits that have her in some suggestive or just plain salacious pose, imitating an imagined character from different ethnic subcultures. Here, these lead-heavy photographs — indeed they are photographs of sketches Lee commissioned from street portraitists around the world — are very Jason Bourne, like artful head shots the CIA might use to locate a rogue secret agent. Is Lee planning on retiring soon?