Mirrored
Another way of creating patterns is to mirror the motif.
Motifs can be mirrored horizontally or vertically.

Swan, Rush and Iris, Walter Crane, 1877, wallpaper design, V&A Images / Alamy Stock Photo
Swan, Rush and Iris (Walter Crane, 1875) is a wallpaper pattern than uses a mirrored motif.
The swans and the leaf pattern behind are arranged around a vertical line of symmetry creating a well-balanced image.

Swan, Rush and Iris, Walter Crane, 1877, wallpaper design, V&A Images / Alamy Stock Photo