Cirq, you are WAY too hard on yourself! Yours is a bit hard to do without a full body shot, but I'll make some quiick observations:
The main small thing I'm seeing for you is a slight forward head position, and a small misalignment of your right shoulder. At first, I thought it was the backpack, but in the second photo, you can tell that it's rotated slightly forward, and slightly elevated. If you have a desk job, that can be the culprit. Doing exercises for your lats and rhomboid, such as the lat pulldown and seated row can help pull your shoulders back. Also, if those muscles are stronger, your delts will not be working quite so hard, so there will be less shoulder elevation. The end result may be a more fluid pole plant. However, since your body is not in gross misalignment, you are probably not seeing anything that significantlt hinders your technique.
Jazz Man! I'm seeing the swayback as well as a slight scoliosis. Your right hip seems to be a bit higher than your left. Knees may be a little bit hyperextended, which may be fixed by performing more hamstring exercises. The hyperextended knees can also be one of the causes of the swayback. I'm also seeing the forward head. Since you are familiar with mind/body exercises, you may be able to fix this with visualization. Imagine someone has a string on top of your head, drawing you up to the clouds. If your head is forward when you are skiing, your body may compensate by bringing your hips into a swayback position, and putting you in the back seat. I would also suggest more lat and rhomboid exercises to open up your upper back.
Nolo, I'm not sure if the shoulder bag is affecting your alignment, but it seems like your left hip is slightly elevated, and your left shoulder is slighly dropped. Your head is also tilted slightly to the left. I'm not sure if it's just thsi photo, but there seems to be a little bit of jaw clenching which may be causing some tension in your neck. However, if you are not seeing any kind of of difference between turning to one side or the other on the slopes, I would attribute this to the shoulder bag. And what belly????
Your daughter is stunning, but she is in classic teenager posture. She needs to do some core work to ge t her to stop slouching, and some upper back work to open up her shoulder alignment.
There, was that so bad?