window grow?

since i live in an attic with 2 4ft. by 6ft skylights even though its approaching winter can i still window grow a plant like in the pic.? and when it becomes night for the proper light cycle just put a couple a cfls above it? i wont be able to have my hydroponics and lights for about 2 months and even then im just gonna get new seeds and start fresh)
http://profile.imageshack.us/user/heyjapan/images/detail/#201/dsc0025jq1.jpg

Looks like its getting some direct sunlight (which is good)... but it all depends on how MUCH direct sunlight per day. It looks like its flowering. Is it?

thats not mine but thats the setup i have and it doesnt get alot of DIRECT sunlight but it gets a whole hell of alot of sunlight. and actuallly i think my baby is flowering.