The funny thing is that nothing dates faster than the latest trends! Whether it's the recent vogue for Pistachio green, Orange, or neutral greys or taupe colours or trendy wallpapers, such as the ubiqitous 'Woods'. Paint is the safest and easiest option for those without confidence or design knowledge. Paint does bring out the architectural quality and details (that why until recently architects have rejected them on the whole). But I really disagree with those that say paint lasts longer than papers. Of course it depends on if it's used in high traffic areas but wallpapers in some houses have lasted well over a century! A choice of wallpaper show a certain statement of confidence and with current Site specific, carefully designed Digital papers or Artisan designed, hand crafted or printed wallpaper you are installing a work of art to be enjoyed for a considerable time.

The background seems to be a soft calming pale warm grey which I would try to match on the other walls and pick up the yellow in some of the accents such as lamp bases, curtains, cushions, a throw for the bed or even upholster a chair or long bench for the end of the bed if there is room for it. I would use a deeper tone of the grey or an aubergine in some other accent pieces, perhaps the bedhead or bedside tables.

I love Josette wallpaper. I used it on my chimney breast in my old bedroom. Loved it so much, another shade went up under the dado up the stairs and in the hall in my house too. We then moved and we have it now in our new bedroom in yet another shade! I put the paper up in my old bedroom. It’s tricky but not the worst paper I have ever hung.

Agree with above comments. If you did use a heavy duty lining paper it would need to be applied horizontally but even then you may get problems of the texture showing through, unevenness at the joins where it won’t adhere because of the texture, bubbles or lifting because of the extra layers, and it might make it difficult to remove later on because of the extra adhesive and paint. I would either paint with a trade Matt paint so the texture is not so obvious or strip and re do.