That's a fine looking deer.. CONGRATULATIONS!!
How far away was the deer from you when you shot? What rifle were you using? What powder charge and projectile? Where did you hit it? What kind of damage did the projectile do? And how far did the critter manage to run after you blasted it? I think most of us here enjoy the hunting story as well, and great pictures.
It sounds like you ate like a king on the last day of the year. Back straps have to be one of my favorite parts of a deer. I like to butter fly them, then rub the with a little olive oil, salt and pepper them and throw them on the gas grill until medium rare. Add some potatoes and a salad with about a gallon of hot coffee and it just does not get better then that.
Good luck with your future hunts. Does this mean you like hunting with a black powder rifle?