Thank you to all for the wonderful feedback. I didn't intend to paint the walls blue rather a taupe/brown - the De Sousa home is a great example. Since publishing the photo and the question - I have viewed many fabrics in many shades of blue and came to the conclusion blue is probably not the right choice. The photo looks beautiful but have moved to silver/grey with plum purple walls. But keeping the padded bedhead with demi lune side tables, an occasional chair in far corner and I already have the perfect bedside crystal tired lamp bases already. Again, could go very wrong with purple but I think I've found the perfect colour here in Australia. There are some stunning fabrics available in the silver/grey tone and I think it would well in the bedroom. The starting point funnily enough in moving to silver/grey was stumbling across the most gorgeous drape fabric. Then I built the rest from there. Now it's down to making final selections. A frustrating but fun process. Can't wait to see end result. Fingers crossed it all works out! Thank you once again - this site is amazing and your feedback is most helpful.

This is the room in question the furniture will be replaced with a creamy white suite but the carpet will also go when the new furniture arrives

I’d forget feature walls. They are dated and not Hamptons. If you love the blue why not use it throughout even consider 1/2 and 1/4 strength.

Just guesses,,,,