Hey PS.
Yeah, looks like the genetics (leaf structure) in combo with the change and rechange in light times is the key as pic 1 really shows the veg to flower to veg and back to flower being expressed in the plants growth. It's the hormone changes back and forth.
Remember a few weeks back when we had the ice storm? I was power down 2 days and couldn't run my HID lighting with my underpowered back-up system. So my girls have just recovered from that.
Anyway she'll be just fine. In fact you may really like the closer together internode space you're girl is showing, when you get to the finish.
Every spring I'll take 2 plants freshly transplanted into their final pots at around 18" and put them out on the deck with the sun doing short hrs to induce flower. In about a week or a tad longer the sun gets to veg times and the plants revert back. Veg for about 6 weeks(can take 2-3 weeks to revert back to flower), maybe a couple more and then put them back indoors and start flowering. I get nice tight node spacing and great long and fat buds that don't grow that way regularly for that strain. Of course they are done organic and go to myself and selected patients.
Grow on Brother in another county!