My plants dried up. R they gonna die?

Hey Fellas. I have 5 female Bubblicious growing in soil. 4 weeks flowering. I have them up in the attic (gets cold in there 30-40F)inside the rubbermaid bins one on top of the other with the top cut out so the air can escape and a 400W HPS up Above. I had the heater in there, Not blowing heat directly on the plants but to the side of them on the wall of the bins. There is a fan going on high too, but 2 of my plants dried up. on that side where the heater was blowing heat at.(my mistake shouldn't have the heater faceing the side but the back away from the fan and the plants), But anyway R my plants gonna be allright? It looks like only the leaves got dry and crumbly but the buds still look allright and feel moist to touch. there is almost no any leaves left just buds.

SUCKS !!!!I am a dubmass
Thanks for response.
Pic is from before, when they were just put in there and looked sooo goood!!
Later will post more pics on how they look now.

anybody?please