Each brand will have a wide range of price points too, ranging from an affordable basic paper to expensive hand painted selections. High quality paper will be expensive. Some of the major brands: Schumacher, Kravet, Osborne & Little, Cole & Sons, York Wallcoverings. Most of the papers you see on Houzz comes from one of the brands above.

Maybe skip the wallpaper and just paint. What color are you painting the rest of the house? Gray? Cream? Spa? Maybe it will tie into your yellow tile. I liked this idea..paint a pale gray and then add a yellow and gray patterned Roman shade on the widow. White rug and towels.

love the black and white suggestion! you can do so much with it in terms of accent colors. Leopard, zebra or koi, in a bold color choice, would also look amazing. (the zebra/koi come in many diff colors.) Or, what if you painted the walls a dramatic color? this is similar to yours. you could do a black mirror and if possible, switch you light over to some cool sconces. (not these, but something a bit modern/industrial) or just get a new vanity light. I love this one from west elm. (see wood medicine cab below) Tried to photoshop something..... you could also do a black or navy ceiling, bright white walls, and bring in bold color towels or art. peacock blue wall and ceiling. your ceilings are tall enough so you could carry this off OK. this is PB recessed medicine cab. I like any metal finish. (black would work if you're going w/the black and white paper west elm has this one in wood or silver

Like any of these? (I love all of them, and you should probably get some samples. But I like the last one because I think it may tie in with the floors nicely. As will the first. )