When hanging wallpaper, the last corner (kill point) of a room virtually always ends in a pattern mis-match. That’s why you try to tuck it in an inconspicuous corner, like a short strip over a door.
In this case, I was going to end up with a medallion that got chopped in half vertically. Not horrible, because that is just the nature of the beast. But I had an idea to make it look better.
Using my straightedge, I sliced off the medallion. Then I found a scrap of wallpaper that was plain white (the background color) and trimmed that to fill the width where the medallion had been. Success!
But there was still a quarter medallion showing at the ceiling line on the adjacent wall.
My solution was to again take some left over wallpaper. I cut a shape that mimicked the motif on the wall, and pasted it on top. Nice!
Only problem is, the paper is somewhat translucent, and so a “ghost” of the image under the paper is showing through.
No problem. I cut another patch, just slightly larger to “feather out” the light bump from the difference in heights of the patches. Once it was pasted on top, it occluded the “shadow” of the medallion. From the floor, you can’t see a thing.
In the final photo, the distance between the medallions is wider than it “should” be – by maybe as much as 2.5″. But this is barely noticeable, and is way better than having a chopped-in-half medallion below plus a quarter medallion above.