An Etsy shop sells it: https://www.etsy.com/uk/listing/197814636/self-adhesive-vinyl-temporary-removable?ref=sr_gallery_29&ga_search_query=leaves+wallpaper&ga_page=2&ga_search_type=all&ga_view_type=gallery Good luck!

It's not a wallpaper recognise or I supply. Have you tried contracting Ikea to see if it's one of theirs? If not they should have the details of the photographer who took the photos of the room settings.

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.

thank you so much for your advice! so the structure is pretty much unchanged so it's not a new wall that was erected in between rooms. Walls are original, solid but when a hole is drilled in them, they do have this crumbly stuff that comes out...am I making ANY sense?! 😂🙃 He's basing his opinion on the flats that he's renovated and that he also bought and renovated his own flat on the same road as mine. I don't know if he was putting me off extra work to help me save money OR he didn't want to take on more work. I've had a few carpenters flake on me so I'm not sure which of these two it is- will see if I do get a quote from him or not 🤷🏻‍♀️ yes for the bedroom, papering on top and painting below the beading. The wallpaper I want alone is likely to cost £1000 so I would die if I buy it and then can't use it...😬