Chickens don't care how "pretty" their coop is, if that makes you feel any better. They do care about having solid shelter w/good ventilation, clean water, fresh food, room to move about, etc. I would contain them for a few days to make sure they learn that this is "home" now. I'd sit quitely with them each day to observe them and let them get to know you. I'd dole out a little scratch, sunflower seeds, grapes, or other treats each day so that they learn to trust you and like their new home. And do keep in mind that change is hard for most chickens; It may take some of them a few weeks to get back into laying. Good luck and enjoy your new chickens!