I call myself the "Gleeful Glamper" because I love to change up the look of my 13' Scamp
according to our destination or my whim. The simplest way to change up the look of your trailer interior is with curtains and pillows. See some of my photos here. You can also look up some of my previous postings on this topic by doing a FGRV "Search", click on the "Search" button and scroll down to the "Google" Search and enter the words "Gilda curtains" and you will find my posts. If you enter "curtains" you will get others' posts.
Basically, curtains are simple beginner sewing projects. They are just a rectangle with the edges turned under and sewn. If you don't sew, ask someone who does. Even the person who does alterations at your cleaners can do this project. You can take window measurements or give the seamstress the old curtain(s).
I chose to make curtain panels because I like the translucent curtains in the middle as they let in the light
, yet provide privacy. Too much window area covered with print can be overwhelming in a small space. By making panels I can "change out" the look easily. I always make two matching pillowcases with zippers for easy changing of inner pillow forms.
You may need to order special "tape" to fit the curtain track in your trailer. You can find these online. My trailer has curtain rods.
Whatever you decide, I wish you good luck. I will be glad to advise you if you PM (private message) me.