FYI, invest in a tripod. Set it up down your foot line. Its hard to tell clubhead angles from this angle, and the human condition shakes the camera.
1) Less arch in lower back. http://thesandtrap.com/t/56069/good-golf-posture
2) Let the arms hang down more under your chin. Little more arch in the upper back, as before less arch in lower back.
3) Flare your feet out 20-30 degrees, just a freebie that helps with hip turn and weight forward at impact. Its an easy implement into the golf swing.
You lift your body up BIG TIME. Need to work on a steady head. Again, working on your posture will give you some of this because it will help you rotate easier on a proper incline. Basically you need to stop lifting up, and let your left shoulder to turn steeper. Let your right leg loose flex, your left leg gains some flex. You will feel a stretch in your right side.
Good drill to feel the the proper shoulder and hip incline. You will notice how his shoulders are much steeper. His right hip has gone back and up. Also notice his posture were his lower back is in neutral (not arched). His upper back is arched, letting his arms hang naturally down under his shoulders (or chin). This drill will get you the feel of how your head stays steady. Once you get the feel of it, you can practice with out a club of getting that body turn correct.