Greetings and welcome to BYC! Looks good, but a couple of comments... You really need much more/better ventilation; lower and higher. Ideally if you can open the entire upper portion between the studs and cover with hardware cloth under the roof overhang next to the one already existing vent, then open vents on the side walls between the studs maybe 8" above floor level (covered with hardware cloth), you'll accomplish a nice flow through ventilation to remove moisture and ammonia odors. They naturally rise and this will allow them to escape making for much more comfortable and healthy chickens.
Also, because the coop is elevated off the ground (I understand why), the chickens will want to tunnel under the coop for security and nesting as well as shade from hot sun/wet weather. Sadly, it also makes a nice hiding place for rats, mice, possums, coons, weasels, snakes, cats... well, you get the drift... You might consider digging a 18-24" deep trench all the way around and attaching hardware cloth to the base of the coop and burying it to form an exclusion "wall" to keep everything (including diggers) out from under there. Because of the concrete floor supports, digging around them might prove detrimental... alternatively, you could apron the hardware cloth out on the ground then place large rocks or pavers on top of it to hold it down/in place.
