I think the development of your Girls is ok... but could be better.
They are growing with ashort internodial distance,,,, that says to me, your light is to close// to strong
And plants are drooping leaves. and you were talking about 500ml water.... for each plant= orof all of them=?
If they get 500ml water each its way to much for their size.... they will need about 70-100ml daily
so i hope they look much better soon
And if you think about growing more, think about getting ahumifidier. Girls develop way better, if they have around 75 percent of rh in this stage
https://www.growmart.de/blog/wp-content/uploads/2019/04/vpd_1degree.gif