Looks GREAT! You're going to love that coop!
Will you have an attached run? If so, I'm assuming it will be on the front since that is where you put the pop door (yes, chicken door.) Most people find that when you have the shorter side face south, then you will be in the shade when you are working in the coop. Think about your location, the sun, wind or breezes and how they will affect the conditions both summer and winter. It is nice not to have to walk in the run to either feed or collect eggs. Cleaning chores can be done from inside the run because you're going to get messy anyway! If you change the orientation and can make it work, think about the pop door on one of the ends and don't forget to raise it off the floor. The hens can step up on the edge to go in and out with no problem, and it will keep your shavings or whatever you use for bedding inside where it belongs! Speaking of bedding, when you open the doors at floor level, the bedding will spill out as well, on the other hand, if there is no obstrution, it is easier to rake out. Maybe a removeable barrier, just inside the doors to hold the bedding in when the door is opened that will slide up and lift out when necessary to clean out the bedding, would work?
There's so much to think about, right? To me, that is most of the fun, that and the actual construction. Oh wait, I mean tending the chickens and watching them thrive. Wait ... it's collecting eggs, yes, that is the best part, no, it's chicks, yeah that's it, chicks under a hen .... no, it's ....... Heck, IT'S ALL GOOD! Have Fun!