Your short drawing, leaning your head into ( toward ) the target, which is shortening your draw and not letting you engage your back muscles. You also plucked the string, string hand is moving to your right, instead of to the rear towards your right shoulder. Your target looks to be lower, in front of you, are bending at the waist or bending your front knee so you remain in good form ?, can't really tell from the video.
Stand straight up and bring the string to you, don't move your head toward the target. Review Terry's form a clock, bow hand at 12:00 and string elbow at 6:00, if you get your string elbow to the 6:00 position your shoulder should be rotated slightly back and you should feel the back muscles pinching, like your trying to pinch a dollar bill between your muscles, more on the right side than the left for a righty. This will move the string hand toward the right shoulder upon release.
P.S. Nice log home, and good luck.