I know the trail at Okemo. Nice cruiser with the ridges. Skier is having fun and has nice smooth movements.
Similar issues seen in both clips:Hands, Rotation, Shuffling.
Hands low(dragging poles) gives false sense of balance. In Clip One (17 seconds in), you are using the poles for support...you're sitting back, leaning on the poles. The other turns, using the poles for lateral balance and turn assistance. In Clip Two, (13-17 seconds in), hands low (and back) seem to be forcing a "reverse shoulder" look(Stein Eriksen)...counter rotation, causing you to rotate your upper body to the right to start your next turn(to the left) ...rather than pivoting your feet underneath you.
So... hands...a little higher and square with your hips/shoulders. Exercises... hold the poles at the outside of the tip and handle(reaallll wide) at chest height. Imagine your upper body/hip forming a triangle...keep it pointing in the same direction. Drag (if this is who I think it is) something behind you and notice that your hips and hands are "locked" in a position during normal turns (slipping will cause some variance).
Rotation of the upper body to turn rather than using flexion/extension. Clip Two (13-17 seconds in). Discussed above.
Shuffling from the "old school". Clip One (14 seconds in)you can see you shuffle your tip lead before the fall line. Going back to the Hands... if you pivot your feet beneath you, your hips/hands are straight down the hill when your skiis are even tipped in the fall line. Seen also in Clip Two (13-17 seconds in).
So... shuffling...practice on beginner terrain... make turns from the 11 to 1 o'clock position being "neutral" at the fall line. Some people do this by "pulling back" their uphill ski at initiation (not pushing the downhill forward!!!). A better way (I think) is to get your center of mass over your pivot point. (refer back to clip one 17 seconds). Stand in your ski boots on the floor in "skiing position". Your weight probably feels like it is over the "center" of the foot...your arch. Shift your belly button a few inches forward(flexing ankles)...did you fall yet? Just befroe you fell....that position...now take it skiing. You will find you are over the pivot point of the ski. After doing 11 to 1 o'clock turns, increase your range of motion to eventually be 9 to 3 o'clock turns. (not hockey stops...turns!!)
Although I don't like to do this under normal skiing conditions...every now and then...look at your ski tips at the fall line to see if they are neutral.
Well, I've said a mouth full. Skier....enjoy....other commentators... have a go at it.