Cabinet vent

My first grow was not successful...
I am doing my second grow right now.. officially it's my first grow because I didn't finish my first grow.. My only plant turned out to be a ball hanging dude.
My second grow is better.. My grow-cab is full of females.. hmmm.... Got like 7 clones growing in my vegetative grow-cab and 2 mothers are in my flowering grow-cab..
I live in apt and I've also thought about growing in closet before I did my first grow.. Well I decided to go with cabinet grow.. I've put my grow-cabs right next to my bedroom window and attached vent ducts and an air scrubber.
I think my picture explains little bit better.
My flowering grow-cab is small..