On a recent shoot for my alma mater, Binghamton University I photographed a fellow alumni at New York City's Grand Central Station. The lighting situation and white balance was difficult. Lots of harsh, warm, yellow light. There also wasn't much light which presented its own challenge. The culmination of white balance and light made it very difficult to create fill light using an external flash.
I will upload a link to the alumni shoot photos once they are published in Binghamton University's alumni magazine, In the mean time here are a few photos I grabbed before and after my shoot.