NEW ORLEANS — One day last year during the Fair Grounds race meeting in New Orleans, a crew showed up on the backstretch and, in a space between trainer Al Stall's barn and a neighboring outfit, installed a makeshift photo set. Lush flowers, sod, ornamental bushes − a lavish backdrop. Out of Stall's barn was led a horse who for five years has resided in stall No. 5, Star Guitar, who stood, barely bothered by the strange change in routine, for a couple of hours while a photographer crafted the perfect shot.