Ryan,
In addition to some of the the things Mike mentioned, here are a few things I'm seeing:
You have very minimal movement in the knee. In your setup, you don't flex at the knee enough, which prevents you from getting your hips back far enough, which robs you of power. It also means that you have to get low enough to grab the bell mainly with hip flexion; but even with your torso nearly parallel with the ground (not necessarily bad in itself) you can't comfortably reach the bell without significant spinal flexion, especially in your upper back. Try to keep a bigger, more open chest in your setup, with your upper spine more extended (or at least flat) rather than collapsed forward. Balancing your knee and hip flexion better will help facilitate this.
Then on the upswing, you don't look like you are fully extending your knees. So when your hips extend, your knees are still bent. At the top, your lower leg is inclined forward, and the rest of your body, from knees up, is inclined backward. "Plank up" at the top and stand tall like Mike said. Knees and hips should fully extend simultaneously. As the knees reach lockout, "pull up the kneecaps" by contracting the quads, squeeze the glutes, and brace the abs. One straight line from head to ankles.
A related problem is that you are move your knees forward again at the initiation of the upswing, so you are "scooping" under the weight. This is a fault that can be grounds for failure of the swing form test at certification (or at least it was in the RKC days). Moving the knees forward on the downswing is acceptable as long as the movement stays primarily a hinge and doesn't start to turn into a squat. But the knees shouldn't come forward again on the upswing. Watch your video at half speed (click on the setting icon to select playback speed) to see this clearly.
One thing I disagree with Mike about is setting up further behind the bell. I don't think your distance behind the bell is problematic as much as the geometry of your body positioning.
Hope this helps.