They look perfect. Good job. They might be smaller because of the small pot. Small roots =small plant=small buds.Basicly bigger root system=bigger buds.If you don't know already. You might want to flower those sooner then a month. They double in size(maybe triple)The taller one looks like it has some sativa in it. So it will get bigger.Probably. When you switch to 12/12 make sure it is totally dark in there. And no interuptions of darkness. Or they can hermie.I hope they are girls too.