Cute coop. I like the nesting area with the roof that raises for egg collection. That’s what we did, really helped.
I guess I didn’t look carefully, but we found the girls like to roost at night on poles….I assume you have those or something for them. That lower area must be strong and hopefully a way to enclose them at night as raccoons are real buggers. We had dogs who protected the chickens from the raccoons, but other friends have had the *&^%! animals tear back metal siding to get into the coops.
Yes, they are messy with water so daily change or at least proper chicken waterers necessary.
I often thought a rolling wire cage would be great, each day roll it, with the chickens inside to a new area I wanted freed from ground bugs. never worked that out in my head let alone do it.
Hens are pretty quiet, it is the rooster that gets neighbors upset. as soon as we had a rooster, he was destined for the dinner table as soon as he but on a little weight. Remember the wings must be clipped, one side only so they don’t fly. Winters can be a bit much for them unless you live in a mild climate. It was easier to start with new chickens than trying to carry them through tough winters.
Plenty of straw in the coop to catch droppings and the straw put into the compost pile ASAP or even just dug into the ground. Remember to wear a mask when cleaning the coop as the chicken coop can carry disease.