Setup: You will likely be more comfortable with a slightly wider grip so your hands don't brush against your shoulders when the bar is racked. Also, squeeze your back much flatter in the setup.
Pull: You are extending your knees so they are almost completely locked out. They should not be that extended. As you go to extend in the jump keep your arms straight and think hips up (hit the ceiling), not forward.
Catch: Spin your elbows up around the bar quicker to rack it and aim to land on your shoulders. Starting to loosen your grip on the bar as this elbow turnover happens (instead of after as seen here) should help.