Critical photos in DIY organic supersoil

I believe he back left plant is in more advanced senescence due to its larger size. It has lost many leaves now for the final stretch. The 2 other plants are slowly catching up. Some branches are getting too heavy for their weight in places, it might need some tending to if it worsens. The strain is meant to flower 7 to 10 weeks and this is the beginning of week 9. I could see the other plants lasting 12 weeks though and I am harvesting the whole tent at once. I hope this won't be an issue. I started vaping the larf already though, it is already potent! And with vaping, there is no issue of drying. I chop it up in a paper cup with the trimming scissors and leave it there to dry with a desiccant bag on top of the cup and it vapes great. No flavor issue.