Try to keep your lights as close as possible without hurting the plants and an even canopy (tie a bit the highest branches). Some of my plants took 80 days to finish and were indica. If your temps/humidity and ph are spot on, they will be ok, and they seem pretty healthy. Too much nitrogen can stunt bud development too. Anyway the first 3-4 weeks plants will stretch, it is about now when they will start getting fat and stop stretching.
I usually water/feed them and don't watch them for 3 days, I can notice a lot better the bud development than if I am looking at them everyday.