The ladies are looking good! Except for Banana Purple. I think she's experiencing a deficiency problem. Hopefully, this week's water change will fix that. Other than that, the roots are looking white and good (with a bit of brown spots but I think that's the nutes)
On that note, switching up the way I measure my nutes on this grow guide to make things easy. e.g. Bloomwell is actually 15ml/16 litre (that's my bucket size)