Divisions both stark and subtle dominate Nathaniel Mary Quinn’s drawing ‘Double-Barreled Shotgun,’ a standout in his current show at Gagosian Gallery’s uptown location. Prompted by a bad experience with a family member, this piece unites two figures only to show their differences. Created with a technique that appears to be collage, yet is entirely hand drawn in charcoal, gouache and soft pastel on Coventry vellum paper, the work manifests invisible hurt in disfigured faces. (On view through Oct 30th).