Not sure if this is art, craft, or gardening. Pebble mosaic "carpet" is beautiful. For this pebble-mosaic patio, the author modified a classic Persian carpet design to represent the creation of the universe.
DIY :: Acrylic paint (enamel works even better, but it's more expensive) on a few smooth rocks, then placed here and there in the garden, makes a surprise treat for the eyes. Summer project for the kids. Hobby Lobby has rock painting kits.
Use geometry to contrast or complement the flowerbed's curving borders repeat in the gentle edging of lawn. Plants chosen in similar hues.lavender, light purple, and fuchsia offer a soothing color for the garden. Love this garden!