Your coop looks great! If they have access to your yard all day then it will be fine for them to have just straw in the nest boxes and pine shavings in the run area (much easier to clean up poop than directly off the floor - it sticks like anything!)
When I first free ranged my girls in the garden I used to go out every 10 minutes to check they were ok - I was so worried! Now I leave them all day, with no problems at all. It's natural to be concerned at the beginning, but it's also good - you need to make certain that they don't get into any areas you don't want them to, or find things that you have overlooked.
When I first free ranged my girls in the garden I used to go out every 10 minutes to check they were ok - I was so worried! Now I leave them all day, with no problems at all. It's natural to be concerned at the beginning, but it's also good - you need to make certain that they don't get into any areas you don't want them to, or find things that you have overlooked.