You will learn a lot reading and watching. Shooting is the best teacher. Use a light 1 ounce load for her from the 16. Continue adjusting the gun for comfort as well as alignment. Little moves do make a difference. In my experience the comb slapping the cheek will eventually make pulling the head off the stock a habit. Comfort is also key in the butt. Pinching there can be more prevalent for females and cause odd mounts. The adjustable butt looks and feel weird (twisted and dropped) to me but fits my daughter well.

Set post 3 on straight aways and have her shoot them until she is consistently grinding them. See the bird then move to it. This might help her brain remember barrel/bird relationship for good breaks. Do the same for other posts and presentations she struggles with.

Thanks for the complement battue. I'm no fitter but have been down this road with my daughter. She's 5'8" about 120#. Sadly, college, boys etc... have taken the place of her shooting.