Or don't use wallpaper at all, and restore the fireplace, not sure if that was intended, as that will be a lovely feature in the room itself. One other way is to put wallpaper on the wall opposite the fireplace, which you can see from the open arched entrance, just make sure that whichever wallpaper you use flows also with the room leading into the current room from the arched open entrance, as it will be visible from there. Personally I do not like wallpapers used just on the chimney or on the chimney wall especially when there is a beautiful fireplace there which should be the most important feature in itself, but that is my personal preference...

How about warm yellow? I think it will go together with bricks and would be a good contrast to dark floor and black cooker. Yellow is an optimistic and cheerful colour and often is associated with food. /Marcin

You like the idea of a feature wall, so take the advise from those who listened to you and replied with feature wall ideas, there are some really nice and a bit different wood effect wall papers, that would look good above and then just extended about 24" either side of your fire place, also the mirror could be just a little higher, the family photos you have would be better placed above the unit that your lamp is on, also pulled away from the corner about 3ft, your other wall art would look great placed above your sofa, but not the 2 flower one's, maybe try placing them one above the other on a narrow wall, and have your foot stall/pouffe underneath with a couple of cushions, almost creating a reading nook, good luck with what ever you choose to do

Hi, I would paint the entire wall.