The colors just sizzle together; don't they? The burgundy foliage annual (for us in US zone 6) is an ornamental pepper called, "Black Pearl." The leaves are glossy and the color is "Hot!" Pair it up with orange and it's a smashing success. You could also choose an burnt orange crocosmia instead of an orchid.
(Do you think that this arrangement is up against stone? It is actually a chalkboard that has been erased over and over again and it has the patina of stone.)