All 3 of these are the same seedsman critical+ 2.0 autos but you can see there is one that is bright green. Is there any concerns or just different phenos? One is really small, maybe the green one is indica dominant and the other 2 sativa?
More than likely just a pheno, happens all the time. Your plants all look healthy. I had three sunset sherbert, one was so purple it was almost black, one was green, the third was just a little purple, same seed pack.