From the first three pictures. It looks like you need to be flushing or you'll have some harsh smoke. All those leaves that are dead is a good sign that one is done.
Honestly from what I've seen. It's very hard to tear them up beyond repair. I had one completely snap a foot from the top. No tape or anything needed she just fixed herself by reaching for the light. They are very tough.
Looking at the last pic they look good to me. Your going to lose leaves the further into flowering you go. But may be some sort of deficiency. Someone else may know better.
I'd try to find a way to seal around that closet door. Maybe sticky foam for the sides. And a draft guard at the bottom. Then you have no light leak. So no questions. Except why you have a draft guard on a closet door. Lol Tell them to mind there own shit.
So is this place still going? I've placed my order but haven't sent any money. If so do they tell you what freebies you get? Mine just had what I ordered.
Is it truly worth keeping at this point? And trying to save it. Can't use insecticide this late can you? I was thinking of starting from scratch. It was bagseed so not a huge lose.