I'm not a fan of wallpaper, though I'll admit there are some powder rooms on Houzz with beautiful, two-tone wallpaper that I love. The last time we bought a house we had to choose between two equally desirable, quite similar vintage houses--one with wallpaper on every wall (even in the hallways!) and one with painted walls throughout. In both cases we planned to repaint in colors of our choice, but we bought the house without the wallpaper because it was simply less work to repaint the painted walls than to strip a house full of someone else's tacky, outdated wallpaper. So by all means use wallpaper if you love it and will be in the home for awhile, but don't expect anyone else to appreciate it when you sell. Wallpaper (like patterned fabric) is just too individual a preference to translate easily into someone else's aesthetic.

White is simple and timeless, the feature can be artwork, timber joinery, natural stone floor or the space itself with expressed architectural features for example exposed structure or highlight glazing, interesting ceiling spaces or a fireplace. I think you need to be careful with feature walls as good design needs to be logical and based on reason, this leads to contemporary yet timeless spaces for people to live in.

To Modernise this without rendering or retiling the roof I would probably recommend to go darker with the trims. My top pick as a colour consultant would be Dulux's Domino for the trim. It will be a little bolder and create a more modern contemporary feel. You can see it pictured below as the trim. Obviously this house has painted their bricks in the shade "teahouse" however it will still look much better on your 1980s "peru" colour bricks! Don't hesitate to contact me if you need any more help colour wise!

Hi did you end up painting your house snowy mountain half with snowy mountain quarter on the trims? Are you happy with the colour? Does it look white or does it give off another tint? I'm considering this exact colour scheme for our Hamptons style house.