Originally Posted by DieselWeasel
I would've posted about the bent arms, but it was already mentioned.
Keep your shoulders behind the bar when you initiate the deadlift. Your body is too far forward, in front of the bar.
Also, don't put the bar against your shins before you grab it. It's better to align the bar over the middle of your foot. Doing that will provide more room for the knees/legs to bend and straighten, but only just enough so that you don't lose precious leverage.
Your shoulders should not be behind the bar, you want to keep your shoulders over the bar. The
When you drop your hips before you start the lift your shins should be very close if not touching the bar.
Review these articles for the proper setup for the deadlift:
Improving the Deadlift
How to Set Up on the Deadlift