The power is good, as is the rhythm.
1)Don't pull straight.
2) Start the bar over the bse of your big toe. (you're too close.)
3) Set Position should be: a)shoulders vertically over bar, b)arms descend by outsides of knee joints, c)weight should be on the forefeet at Set d) your hips will be slightly higher due to this Set position.
You might try looking at Pendlay's forum and vids. and I have 3 vids. on youtube that might help: Rock and Roll-Don McCauley, The Dirty Dancing Drill-Don McCauley and Sweep the olympic lifts-Don McCauley.