I like the planking and the grey paint. I know the photos don't show all of the detail, but from what I can see, you may want to consider adding a roost. Also, I don't know anything about the climate where you are, but unless the photos don't show it, you may also want to add some ventilation. Thank you for sharing your photos. Best of luck with your flock.
there is a little space between the floor and the walls , but when its sunny i keep the coop open . they don't sleep on a roost the sleep on the floor . during the day they do sit on the roost outside