“Overflow” presents three distinct photo-based series, all part of Welling’s ongoing exploration of photography’s relationship with painting. Select photogram’s from the 2010 book Frolic Architecture were created by painting and folding a sheet of clear Mylar and then contact-printing it on photographic paper; for “Fluid Dynamics,” the artist exposed wet photographic paper to light, processed and scanned the results, and then digitally manipulated the hues; and “Wyeth” documents Welling’s recent trips to Maine and Pennsylvania to study the subjects and places painted by Andrew Wyeth, one of his earliest artistic influences.