The girls that will eventually move out (fingers crossed) look healthy. No.2 added 2cms in the last week reaching 14cm now. No.1 didn't add anything and I guess she is still shocked having her head cut.
Otherwise they have lovely colour and are starting to branch out. In that regard, No.2 is really productive. I think she might accept some forms of HST.
Currently they enjoy 18 hours of light a day but when the older girls move out, they will get 20 hours of light. It might make them grow a bit more.
They have been watered a week ago and are still having their pots relatively heavy so I am not adding any. Otherwise they are getting rain water and no additional food beside the one mixed in the soil.
Happy growing and if all well, come back next week.