All of these pictures are showing good progress -- just what we like to see. She is elongating nicely and loosening, baby is lining up -- as she is much more slab-sided than her earlier pictures, and baby is starting to move "front-of-center" position in the side shots. She is doing VERY nicely!!!
Watch for more elongation, the inside vulva lips will start to change color from a salmon color to more red, she will do some more rolling to further line baby up more -- there may come a time when she doesn't even look pregnant when you stand behind her. That will be when baby's spine is lined up with hers! Just perfect! She will be VERY uncomfortable when this happens, as there won't be much room for baby to move around, and sometimes it creates more pressure. You may see her pushing her butt into every wall and post she can find. All very normal!!
She's doing great!!