Those pics could all be me and more than once. Shooting a deer with a bow is an extremely complex undertaking. They rarely stand still in the open. Add in the human element of heart rate, etc, and angles and contortion and lots can go wrong. Practice surely helps but the moment of truth rarely mimics our practice conditions. So we take our responsibility to the animal and its creator seriously and do the best we can. Mostly we succeed and sometimes not. Face it, fix it, forget it.