The bathroom should be a space that every family member can enjoy
I think the bathroom should be a place that every family member can enjoy, so I support the bathroom peacefully without carrying children’s decorating items, except for the bathroom for the kids only, and the adults using the other bathrooms.
That does not mean that the bathroom should be stuffy. Think what kind of feelings you want your bathroom to give you. Are you looking for a space that makes you relax, refresh you, or make you feel like royalty? Determine what experience you want your space to be, then consider the color psychology and choose your palate based on the emotional and symbolic meanings of the colors.
Do not forget that sometimes simple accessory changes give the room a very different look. No need to decorate the entire room at once, and there is absolutely no need for the entire room to match. I liked the leaf and leaf pattern, so I had a fairly elegant shower curtain with a leaf pattern on it from Target, and then I found a dish of soap and dispenser in Marshall that did not fit exactly, but coordinated well. Previously I had a set of red / green / beige hand towels in the bathroom, but my bright blue bathtub scheme (in a white room) stood out like a sore thumb. I threw away the towel and bought a very luxe hand towel and towel from Target which was almost appropriate but had a different texture and now with green leaves and blue towels, my entire bathroom is in tune.
Do not forget to consider storage for all children’s toys when decorating! There are plenty of solid waste bins that you can store their items and keep the appearance of adults while not throwing away their stuff.
Not every room needs a “theme”
Because the bathroom is shared by the whole family, I will skip the kids theme. Hubby probably would not have liked a “sports page to read” surrounded by clowns or rubber ducks!
Not every room needs a “theme” and deciding one ahead of time is usually not a great idea, because you can get a bit “stuck” into it and end up too much.
The easiest way to decorate any room is to choose the element of the fabric you love. For the bathroom, could be a shower curtain, window curtains, rugs, even towels. So you may want to start by looking for a shower curtain. Open-minded when you shop. You may fall in love with something with certain colors or patterns, such as lines, geometric, etc., or you may indeed find the perfect shower curtain that matches the theme.
Once you find your shower curtain, wake up your color scheme and theme (if you choose) around it. For example, if your shower curtain is bright, choose one of those colors (or brighter colors) for the walls, and maybe another color from the shower curtain for towels, accessories, etc.
If your shower curtain is a geometric mold (circle, box, diamond), simply repeat that the shape in some places around the room can make the room look cohesive.
In the bathroom, more or less. Find some color things you love and the rest will fall into place. Do not get too much arranged, but the picture on the wall and maybe the plants that live on the shelf or hanging on the ceiling will help it feel like a “finished” room.
However, be sure to use satin-finish or semi-gloss paints, much easier to clean than flat skin or eggshell.