Hey Rua,
Great job you have done so far, try to get Thermo/Hygro digital meter, it is supposed to be cheap.
Keep an eye of the airflow it's essential for all times, especially that when you are out and the cupboard is closed.
Regarding your girls they look quite healthy to me.
Good Luck with your grow.
P.S. You didn't mention what day they are at? Also what are you feeding them recently??
Peace