Hey Zaynah!
Thanks for posting!! It’s a little tricky to say what type of shelves to use without seeing the space and knowing what you need them for, but I would say with that color scheme and aesthetic, a wood shelf could be a great addition! Reclaimed wood, like we used for Eva’s bed would especially give the rustic feeling that you mentioned.
If you want to comment back with a picture or any more specifics, I can give you more ideas or details!
Best of luck!
Mr. Kate & Team