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.

The first paper visualises tin ceilings of the late 19th and early 20th centuries. It was usually painted over in gloss paint to allow easy cleaning. Using this paper would create a very shabby chic room. Unless you're opting for a classic look or a very carefully contrived eclectic look, I wouldn't use the 2nd paper. Paper 3 will give you a classic wood paneled effect. Using it all over may be overpowering in a small room. Consider using it on the lower half of all 4 walls or just as a feature wall.

Hi Gerty, I would definitely recommend a neutral textured wallpaper if you didn't want to just paint the walls either side. Harlequin do some really nice ones that would work against the busy fireplace. Or you could use on another wall and paint either side of the fireplace, hard to say for sure without seeing the whole room. This has a slight plaster affect which slightly emulates the pattern in the fireplace... This one is a metallic texture which could look really nice... This shows how the textured wallpaper will look but I would stick to a neutral colour...

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.