The whole front of the coop is open, but no other openings in winter so any wind cannot 'blow thru'.Very nice coop!
I can see windows, but its not clear where your ventilation is.
The windows appear to all be closed, or is the front of your coop completely open?
Depth of coop in relation to width is fairly critical.
An interesting concept that works well when properly executed.....called the Woods Coop.