FULL ANALYSIS
Photo 1 - Arse, bobble on wrist, left arm veins, face, right shoulder muscles, side ribs, hairy legs, pit hair, excellent nips, left calf
Photo 2 - Concentration hands, the way his torso twists, arse, hairy legs, etc - this one doesn't quite hit the same as the others, but if it had been released on its own would probably make it into the Hall of Fame
Photo 3 - Dick, balls, tummy, ribs, face, hair, arse shadow, general stance
Photo 4 - Adorable face, hair, glistening chest, concentration hands, dick
Photo 5 - Whole torso is AMAZING, the way it dips in does something to me, pit hair, good thumb, arse, left calf
Photo 6 - Sternum, shoulder muscles, generally very fit, pit hair
VERDICT: My brain says that overall Photo 1 or 3 is the best, but the question is what makes me most tingly and the winner of that is PHOTO 5.