Looking good, some of them are pretty dark green--probably about time to double up the Bloom dose and halve the Grow, except maybe the Jack, it's not quite flowering yet but it's plenty green, I'd back off the Grow.
Have you flushed them out at all? I think it's good to do that once or twice before you get to the end. I don't know anything about all the additives in the line, but organic or not, stuff can build up.