What soft furnishings do you have. You could pic out one or two colours as an accent colour and use that as your Base for the curtains. I currently have cream hessian walls and have a duck egg blue and chocolate curtains. I'm currently making matching Oxford cushion covers for the settees . If you can't find what your looking for ready made buy the fabric and have bespoke curtains made for you.

Consider Grey or white. U could also use geometric or any pattern in mint green

I would suggest u to go with white sheer and light grey curtains only. If u want want to play with bright colours then it is safest if u add them in form of accessories or decors, reason one being the space is small n it’ll look more crowded then. It’s better if u avoid orange n yellow in this bedroom at least. If u can give a better picture of the accent wall colour here it would be better. Then u could go with a darker shade of it to form the colour scheme. White+Grey+Purplish brown. That’s it.

Hey Ritika, Its a nice colour combination, in addition to these you can add in some metallic colour like for eg. can add some gold pattis randomly between the vertical groves on the wall (this can act like the highlight) and the same cam be implemented on the wardrobe to create a harmony between them. Can add a beautiful printed runner on the floor at the bed end and can pull out the same colours on the bed by adding a throw and printed cushions as well. Happy Colouring! Regards, Team Cubspaces