Everything about your coop is great. I LOVE the L shape run area, the nice and bright white walls in the coop. Really great that you gave your chicks a 2 x 4 that's away from the wall AND painted - don't see painted roosts that often. I bet it'll make clean-up easier.
I finally added a roost to the run, they seem to like it. I waited a few weeks to make sure they know where to roost at night first, in the coop. Also a little thing to make easier storing extra extention cord or when mowing. I included a pic of my primary predator control too.