You could select the deeper color for the bedroom and a lighter version for the bathroom.

It just depends on how your bed looks when it's placed in front of the wall.

A whole room of this below is kind of a nothing burger.

There is an alternate wallpaper f

https://hovia.com/products/green-abstract-floral-repeat-pattern-wallpaper-r

There are some wallpaper murals that IMO are more interesting than simple wallpaper with its repetitive pattern.

https://belartestudio.com/collections/all-designs/products/tapestry-landscape-beige

If you can see the wallpaper from the bedroom then I would choose a complementary wallpaper to go in the bathroom. If you’re just doing an accent in the bedroom and an accent in say the water closet or somewhere that can’t be see from the bedroom then it’s fine to use the same wallpaper.

Makes perfect sense. You would be able to see it so I will go with the two different ones. The bathroom will have the paper with the white background on top and the bottom will be a dark pine green that will match the paper on the one far wall in the bedroom

Neither is an impact paper, meant to be a feature. Bathrooms are not great for wallpaper for any amount of time,........it's just too much humidity and edges will lift.

Feature walls in bedrooms is an over rated concept and to a large degree have become a fad. A beautifully made BED is a feature!

Why don't you show the bedroom you're doing?: )

If it is magnolias and leaves you love? Put it on the bed?

Paint the walls, deeper green in the bedroom, lighter in the bath.

Mix the Shams and Duvet with fresh white, greens ....

https://www.etsy.com/listing/1627783912/magnolia-chintz-bedding-magnolia

I have always avoided wallpaper but fell in love with this one and redid my guest room to use it

I smaile everytime I go in there I do think usually accent walls are best dome either go big or forget it . I do like MBRs and bath to connect style and colorwise to eachother but not match matchy .. I kept everything else in this space very simple and no other print items at all.