The only thing that I would add to some of the people looking for advise on their form is to remember that you want to have your bow arm, release arm, and shoulders (important) all parelll to the arrow at fulldraw. If you do this, it will force you to bend at the waist for downward shots (instead of dropping the bow arm) as well as upward shots (raising the bow arm). If you keep the arrow pointed at the target while drawing and visually picture yourself pulling from the tip of the arrow, it will also help to keep things in line.