Looking good buddy! You can see you have pushed them a bit. There are nice flowers growing. If those were my plants (which they ain't
, I know) I'd feed them plain water at 6.3-6.5ph. But give them just enough, so you have to feed them everyday. Keep their metabolism up.
Some look quite well balanced, The smaller one in the middle of the last photo looks very high in nitrogen, almost toxic. Imo flowering always speeds up when you do plain water at the end. Unless they're are not enough nutes to go for the last few weeks. You haven't got that problem, there's plenty in there. Plenty stored in the leaves too. Giving them water now will help them use it, plus keep the ph in tact and in the correct region for them to use the nutes fast.
I sometimes get criticised by big feeders for going with plain water so early. My leaves all yellow like fuck and fall off. That's what I want though, like a natural autumn/winter effect.
Plain water now is like guaranteeing success from each individual plant.