not too bad bro... they are a little stretched... but look healthy.. are you flowering or vegging?? if you are vegging you may want to consider either flipping to flower and/or doing some LST training to the taller ones... here is why...
i say flip to flower because they are only going to stretch more... they will out grow the lights quickly from here on out... since they stretch more for flowering anyways the bigger you let them get the taller their final height will be... if they are too tall, besides being weaker yielders, they themselves will be too weak to support their own weight...
if you are still vegging and have the desire to, you may consider doing some LST work.. get those branches tied down and secured to help height... and drop the lights closer... have them as close as you possibly can get them... that will help limit the stretch some...
you will want to start nutes when you switch to flower... start out weak and build from there... but that isnt important until you decide to flip them anyways...
here is what i personally would do... i would start them on 12/12 now.. give them 24 hours straight dark going into 12/12.. this will help speed flowering up... starting the first day of 12/12 i would begin tieing the taller plants down and securing the tops in place.. basically and top there is tie a piece of string to, bend over until you feel it is tight (dont over do it though.. if you get it to tight you risk breaking the top off.. this will be a gradual process so just dont over tighten..) and then tie the string..
this can be done by inserting eye hooks into the wall all around the plants.. or you can use the pots... basically however you want to secure them in place...
every couple days tighten it more and more.. they can bend a lot so dont worry about how far down you can pull them.. as long as the stem is ok you are ok...
stop tightening when they stop stretching...
you dont have to do every branch... even if its just the main top.. i would start under the second or third node..
dont do the smaller one.. just the larger ones..
you may lose a huge main cola.. but you'll be able to drop the lights down more and you will have "opened up" the plants... this means more of the girls can get more light.. this means a larger over all yield potential...