There is no denying that any landscape design is going to be constrained by the location it is being created in, and more specifically what the climate is in that area. For example, the types of plants, shrubs, and grasses that will thrive in cold, damp climates is going to be somewhat different than those that can be planted in those climates that tend to be dry and hot.
Given that we are based in Western Australia, we would suggest that the latter of those two climates is going to more applicable given that for much of the year evaporation exceeds rainfall, and we have areas that see no rain for 6 months at a time.
Of course, not every region of WA is as dry as that but in general most landscape designs need to err on the side of there being a lack of moisture and lots of heat, making sure you implement fire services protection to fight a possible fire. This then brings us to consider what kinds of landscape design would suit the drier conditions that we experience.