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.

<?xml version="1.0" encoding="UTF-8"?><md>Weve now gone "bold" in our little cloakroom and totally transformed the look of it....we are so impressed

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.