The big thing I see is that you are sitting back when you should be sitting down. Let your knees come forward more, bend the knees first and keep your chest up. The more your knees come forward, the more upright you'll stay and the less 'good-morning-y' it becomes. Also, fire your glutes out of the bottom. Try thinking about actively driving your chest up and back as you come up as, right now, your hips are jumping up ahead of your shoulders.