Cross stich rose mural from wunderschön-gemacht: vintage teatime. Do this with wall paint or with washi tape. Maybe not a rose (and I don't know what washi tape is, but This would be cool wall decoration.
But remember that cross-stitching’s more art than science! And if all else fails, you can buy a finished product on Etsy and pass it off as your own. | 29 Cross-Stitching Tips Every Beginner Should Know