I really like this first one. Nina looks very balanced, her striding is rhythmic and even and her neck is coming UP out of her shoulders instead of that stiff and down posture that she adopts. Maybe we are getting somewhere.
The others Nina looks good but I got into a shadow, just as well :-)
You can tell how bright the sun was by the shadows, this was around 9am, but it was a couple of days after the Solstice. It doesn't get brighter than this!