here are tips I received from one guy
I think I can make some suggestions.
1. You are pulling the weight over yourself. Check the video, you are actually floating backwards when you receive. Next, let's look at the way you receive. I think you should try and get that 1/4 squat in there instead of standing so straight up. If you just pop your ass back, your body will be more ready to get the 1/4 squat and receive the bar. The movement of your bar looks more like a cuban press, rather than a straight line. To correct this, turn your elbows so that they face the outside walls and really VIOLENTLY shrug the bar up. Also if you check, you'll notice that your not locking out your elbows.
To me, I think the wieght was too light. In my workouts, I have worse form when the weight is too light. I try and muscle the weight instead of practicing proper technique.
I noticed also that instead of standing tall, you kind of tuck your chin down. Perhaps you were dodging the bar since your elbows weren't locking out.
In closing, try and think in your mind the following sequence: Triple Extension, Violent Shrug, Kick Ass Back, Receive. This is what I think about when I do my Olympic Lifts, and it has enabled me to maintain better form.