as you can see the leaf of bottom-left look like have a little problem. i mean the edge of the leaf looking up and almost turned to inside to the leaf. What does it mean? is this a problem of over watering or what?
Need more info bro, type of soil? pH? Temps? Could be heat like bigleek said or maybe mag deficiency (causes leafs to curl up and pray for help) but can't tell you without any info on your grow and set-up...
from my previous life I would say to wet. cut nutes and water and allow to dry a little, 24 hrs keep temps not to high 70 to 75 see if this helps if helps water with nutes as usual except cut back your amount per watering. if not check for other probs, not enough info to diagnose further. and talk to the little girl.