Cute little coop. The photos are obviously of construction so I'm sure more finishing is in the works, like getting the plastic covered insulation boarded up, and general clean up of course.
There's little things that could be improved on for functionality and safety. The rungs on the roost for example are too close together and the ladder too steeply sloped, so birds on lower roosts can get pooped on by ones roosting above. I do like that the roost is hinged though. The fact that the door swings inward is a little troublesome since it is set at floor level, as it'll push anything in the arc of it (like bedding and chickens) around. As I see that this coop is in a location with very cold winters, I understand the need for electricity and heat, but I'm wondering how safe that heat lamp is due to proximity to a wood ceiling, as the body of these units can get quite hot.