Notice how high the shoulder (scapula) is. The hump tends to cause some to shoot high so be sure and keep your shot low enough.
Some years ago I watched Jim Stepp maker of the "Step Ladder" climbing system when he shot a bison with one of my Shrew longbows. The bow weight was 57# and he shot completely through the animal with the arrow landing on the ground on the other side. The arrow he used was a 400gr Gold Tip tipped with a 125gr 4 bld Steel Force broadhead. He cut ribs on both sides, I wouldn't have believed it if I hadn't seen it myself... :eek: