Hi @Lizzie
Sorry, I didn't mean to mislead. That's not a photo from my home (I wish)! It's a reference from a magazine for the look I'm after.
Here is the wallpaper I bought (at a massively dicounted rate of £5 a roll - always the bargain hunter!)
It's not as stunning as the one in the magazine, but that's handpainted and over £200 a drop (let alone a roll), so I think this isn't bad considering my budget!
Re wallpaper not overpowering the room, I think the main thing to consider is the look you want to achieve, i.e.
1. Keep the sense of space and light. So, think about if the space is large and bright enough to handle a strong wallpaper in the first place. Keep ceilings, mouldings, skirting, doors, window frames and other details in bright white or another very pale colour and use mirrors and good lighting to keep everything light.
2. Forget all that and just go for bold and dramatic. There has been a big trend in the last few years of going for dark, moody spaces and not worrying about if it makes the space look smaller. There are some theories that it makes it look larger. I'm undecided about that! Abigail Ahern is one of the leading interior designers who does dark, dramatic rooms. Here's some examples of her work: