That is an example of the "T" ilovehunting has mentioned. In order to form that "T" you must bring your bow arm up a tad, while bringing your release arm down. You also want to keep your body evenly on that vertical line. If you shoot at an elevated target, bend at the waist, but keep the "T" with your upper body.
Also, do yourself a favor and put an arrow in it next time you draw back. Make sure you have a safe back stop though. I have heard of several instances when a release has failed, causing the bow to dry fire.