Watch any amateur's finish and you can probably guess what kind of shot they hit. Watch any amateur's finish without laughing and friend, you're a better man than me sometimes! Some folks fall over, step over, and even spin on their spikes!
Though it's true that you can have a crazy backswing (Jim Furyk) or a crazy finish (Jim Thorpe), it's not common. The follow-throughs of most pros are tremendous: weight on their left foot, standing straight, club across the back of their shoulders, hands high. If your finishing position doesn't resemble an ideal one, there are probably errors in your swing. Analyze your follow through to analyze your swing.
P.S. The follow-through to the right? Not ideal.