Round 2!

My first grow was over a year ago and was a fun learning experience. I wanted to share my new setup and see what everyone thought. The tent is 5x4x2 and i am doing 4 plants on a 600w dimmable ballast. There is one of those heavy duty 6'' inline fan connected to a vented hood. im not having temp problems in the tent, but it is making the second story of my house ridiculously hot. it sux. I was wondering about cutting a 6'' hole inside the closet ceiling and running the ducting straight up into the attic. is that something that is okay to do? its my house and that will be the grow spot so im not worried about having a hole there.

from left to right: Tahoe OG Grand AK Purple AK Platinum Bubba Kush