As you can see Abe is silhouetted against a bright orange orb. Abe, a wonderful model, never drops his guard when a snack is at his reward.

SilhouetteTech Data: Flash set to 105mm 1/16 power, gridded with orange (2002) gel, 1/250 f5.6 ISO 100

There were several  techniques at play during the shoot. First the flash had to be gridded in order to obtain the proper light fall off. Second the flash, placed between Abe and the background, had to be far enough away from the background to create a large enough circle and far enough from Abe in order to eliminate any light wrap around onto Abe. Lastly a handful of treats helped position Abe.