That walllpaper needs doing

This is my other half, ridiculously brown after a week surfing in Lanzarote.

Behind is my three year old attempt to wallpaper the hall. This paper, beautiful though it is (and bejewelled!) is almost impossible to hang alone, but I only found that out three drops in. Since then the hall has been half papered, half not. It's kind of become a feature, like an unfinished painting, and seems like it may never get corrected ....