Autumn Japanese-style casual

I tried to create a background that combined a landscape and wallpaper. I think I got a good result with "Argyle x Autumn Cityscape"! I experimented a bit with the randomness and proportions of the perforations in the argyle pattern, but after being asked to come up with some ideas based on the request to "create a nice background by combining the second landscape and wallpaper," I selected the best ones that came up, and the result (the first image) after sending in the character illustration and the second image turned out to be the best!