The three views of a stable fit and hold (in photos)
Photo 1: side view
In the photo above, the baby has a lovely symmetrical and deep face-breast bury, from the side view.
You'll also see that I have my hands on the mother's forearm, with her consent, as we work together using the gestalt method with micromovements to eliminate the nipple and breast tissue drag which was causing her pain. She relaxed the weight of her forearm into my hands, and gave me feedback whenever her baby suckled about the effects of the micromovements that we were experimenting with, so that together we were able to find where her pain was zero out of ten on the painscale.
Photo 2: front view
The baby below had a pattern of fussiness with breastfeeding, and was more stable when we brought him into the gestalt position. He still has a slight twist to his little spine - you'll notice that his head is rotated towards his left. If he was fussing at all, the mother would change the position of his pelvis and body slighty so that he didn't have any spinal twist at all.
Photo 3: view from above looking down
This baby below has a lovely deep face-breast bury, seen from above, which is the mother's view. Not all women how their baby comes on to the breast though, and just do it by feel.
It's important to remember though that what we can see visually is just one leg of the three-legged stool of positional stability. You can find out about the other two legs here.
