ORIGINAL FICTIONAL BEDROOM EDIT
Change only the wall behind the bed to muted dusty blue and duvet to warm terracotta linen.
Preserve window, radiator, door, bed frame, wardrobe, nightstands, lamp, vase, floor, rug, picture, ceiling light, camera and daylight.
No new furniture or changed arrangement.
Compare fixed features before accepting the decor.
This is a visual direction, not a paint code, measured layout or real renovation.