I wouldn't be so quick to say it's way too long just yet...

We need a way better picture to really help, and from a couple different angles.

I'd suggest working on bottoming out your front shoulder, and if you extend your arm more, it may make up for what appears to be an excessive dl initially. Most coaches and top shooters suggest a straighter arm, which is more repeatable without inducing fatigue earlier. Let your arm fall naturally to the side; this will be more of the position of what you're looking for when your raise it. Again, keep your front shoulder from riding up on you, stand up straight and balance your upper torso directly over your hips.

THEN it'll be easier to start making some additional corrections.

Take a look at the guys at some of the early "advanced" shooters who posted in this thread...

http://www.huntingnet.com/forum/tm.aspx?m=2675457