I like this video better than the previous one, thanks for posting it.
As regards your hands, here's a shot from last year's ESA compilation.
Your hands are down by your sides, and are not driving toward the new turn. Obviously you realized this and are working on it.
Here's a left turn still from a similar point in this new clip:
I see improvement here, as your outside hand is driving forward at the turn apex in preparation for the transition.
The hand issue aside, I see several areas in this clip that could use some work.
First and foremost, the transition. In both of this year's clips, your transitions are characterized by an up move where your knees almost lock out straight, as shown here:
By doing this, all of the energy from your previous turn is released up, instead of across the hill. While it works for these type of low edge angle turns, it will NOT work when the speed and angles are increased, much less an SL course (not a concern of yours, I realize). I think your overall efficiency would be greatly increased if you implemented more flexion in the transition.
In contrast, here are stills from one of my videos from last year:
In flexing through the transition, you will save yourself energy and will enable yourself to change edges more quickly, in addition to enabling yourself to harness the acceleration forces of the previous turn.
I also noticed a large discrepancy between your right turns and left turns. You tend to rotate your shoulder and upper body into your left turns, dramatically decreasing the amount of outside ski edge pressure you are able to develop. You stay more square in your right turns. Notice that the hand issue largely takes care of itself in the right turns, where your shoulders stay square.
Compare these two turns:
The rotation in your left turns completely prevents you from developing counter and angulation, which would increase the amount of pressure you could apply to the outside ski. In contrast, you do not rotate in the right turn, and, consequently, are able to develop some slight angulation. As I said above, notice how the hands are forward and active in the non-rotated turn, but are more down and inactive in the rotary turn.
My favorite turn from this clip is shown here:
You do not rotate your shoulders, develop some nice angulation, and get your hands well forward. Nice work!
I think fixing the issues described above will make your skiing both more powerful AND more efficient.