I really like the colour of the stock in the scan, an unexpected bonus, it has a softness to the off white colouring that works well with the etching like illustration.
Despite my efforts with the illustration, I had some trouble matching up the repeat of the wallpaper and had to play around with it quite a lot to work. I uses numerous layers to nudge each side of the repeat in different directions.
After hours of work and re touching of the repeat I got to a stage where it had to do. and I am quite happy with it.