Jamie, I'm still impressed by the sense of lateral (side to side) and fore/aft (forward and back) balance you display in your skiing. I also like the quiet upper body, relaxed arm/hand position, and general rotational alignment (shoulders, hips, knees facing same direction) with what appears to be a functional amount of counter (slight orientation to the outside of the direction the skis point).
The series does confirm a consistent wedge position in your skis, as observed in the first photo, and better explains why it's there. Prior to finishing your turn you're pushing the tail of your inside (uphill) ski away from you (while it's still light/unpressured) in an effort to redirect it into the new turn. You’re doing this so that when you finally do end the prior turn, and switch pressure to that ski you've stemmed out, you'll have already completed a portion of the new turn.
This is a valuable skill to possess, and its use is definitely appropriate in tight quarters where turns need to happen fast, but in more open spaces the negatives associated with it make it a dubious choice. Those negatives include a very harsh transition from turn to turn, mega sliding at turn initiation, inconsistent energy flow and speed maintenance, and a loss of edge feel and turn shape control. When you do this, the moment you apply pressure to the stemmed ski it goes into a power slide, which dumps speed and throws you forward. From that point you must try to quickly feather that slide into a path of travel that more closely mirrors the direction your skis point.
Bottom line is that it just introduces a lot of unnecessary clutter to the process of turning. Better to keep the old inside ski (uphill ski) parallel to the old outside ski (downhill ski) through the turn transition and do the entire direction change with a precisely controlled steer (subtle twisting of the feet/legs). This will maintain a more consistent flow of energy from turn to turn, and provide you with a smoother ride because you're always keeping your direction of travel in the same general direction your are skis pointing. As you get accustomed to this you can try playing around with different rates of steering, from quick aggressive steers to exaggeratedly long gradual steers, and you can try varying your rate of steer within a single turn, but always start each and every turn with parallel/non stemmed skis.
Finally, I would have your alignment checked, as was suggested to you earlier. It may just be a picture angle playing tricks, but shot 3 looks very weird. Your left ski appears quite flat while the leg seems to be significantly inclined.
Hope this helps.