Ten years ago, we revamped a very 1970s tired bathroom, and it looked awesome. Now the workmanship/fitting has failed so we need to redo our walk in shower, but not the bath or anything else. In between life has moved on, we're ten years older and DH is now concerned about non slip surfaces. So the decisions are about colours (the bathroom was white fittings, and shower tray with big anthracite tiles, laid in horizontal blocks, glass surround. We are looking at coloured resin non-slip shower trays (any size as they are custom-made to order but 900mm x 1700mm is about right). It's the wall covering that I'd like opinions on. I really don't want anything shouty because I would get bored with it quickly, and the room faces northeast, so there's no warmth in the light. I want it to be simply luxurious and elegant but neutral. What would you interiors people think of as lovely for a 10-15 year bathroom, during which we shall almost certainly sell to downsize?
I would like to avoid changing the floor, which is a large area so costly, and the blind, which is neutral but with multi-colour accents. Paint, shower tray, tiles/boards are to be chosen. It doesn't have to be cheap, but it needs to come in at a sensible cost, so no wild flights of fantasy... unless you just have something that has to be shared of course. Thank you for your interest.