Ski (stance) width and tail wash question

[mister moose]

Most skiers have excessive "push" at the bottom of the turn. Left over from the often used windshield wiper turns during their beginner/intermediate days.

Said another way, not enough "push" early in the turn. Point of maximum edging occurs earlier in a rounder turn.

 

[Swede]

She is a U16 ski racer. I'll see if I can get some video up.

She’d most probably be much better situated to help you refine your stance and technique than us here on the Internetz.