Of course you can post pics. Even if people aren't posting they do look at the pics.
Thank you, Lillith! We like your ideas of screening the vents and you are right about how hard it is to clean. Upside: The doors come right off easily, and the top wouldn’t be too difficult to remove.I'm not exactly understanding what's going on either, but if all they get for space is that little screened box, that's not very much room for more than 3-4 chickens, especially through a winter where they can't go outside as often. I can also tell you that you're going to get real sick of stooping to clean that out, not to mention that half their space is going to be covered in poop because they've pooped all night from their roosts. I also see a chicken projectile pooping into that feeder.
I can also guarantee your chickens will want to lay all the way in the corner of that nesting box, so you'll be having to crawl inside that box, through poop, to reach the eggs. I am in my 30s, and my knees and back hurt looking at this! I would consider removing that screen roof so you can stand up straight. You have all that lovely head space, use it! Being able to walk straight into my coop and use a big grain shovel to throw the muck and mess out without crawling around and stooping is wonderful, and I know I'll continue to be able to take care of my chickens when things don't work as they used to anymore. Think about the logistics of cleaning that coop.
I would be using well over half that building for coop. It's a great little building. All you would have to do is build a "wall" of wire where you don't want them to go or get into stored things.
I would also put hardware cloth over those vents. I can't tell how big the openings are, but smaller predators like weasels or mink may fit through if they're able to climb it. Rule of thumb is if it's bigger than an inch, seal it!