1. You're reaching forward but not creating much of a bounce; the idea of the reach is to create a bounce, which initiates the press. Reach and bounce, not just reach.
2. You're pressing the bar out forward away from your face. Keep it closer. Aim for the tip of your nose.
3. Squeeze your abs hard, really clamp down on them. When you finish each rep, make sure you're coming back to the initial starting position, not an already leaning back and possibly over-extended position.