I'm not sure what you are asking but it sounds like this is a test or else you have 5 separate interior decorating jobs and you are soliciting advice. Sorry but I'm not any good at interior decorating except to tell you that green shag carpeting is no longer in style but like everything else that goes out of style, it comes back in years later.
Those 5 jobs are so different that it sounds like only an interior decoraror would have those jobs and if that is the case, you should already know and should be able to tell us. I would be very interested in learning how someone would decorate those 5 jobs. Good luck to whoever on this one.