This charming Sydney house has lots of nice "gingerbread" -- the carved trim that characterises Victorian architectural styles. Courtney & Wise painted this trim white to contrast with the warm stone and charcoal grey roof. The effect is like lace trimming, or frosting on a wedding cake, and that's just the look you want for gingerbread.
Contrast is the most important point about this type of trimming. Painting millwork like this to match your home causes it to lose its effect. It can be painted with several different colours picking out various elements of the design, but with this particular building, the style and setting are better suited to the more austere effect of all-white trim.
The upkeep on all white trim is also less demanding than a multicoloured paint job would be. The look is still ornate and impressive, but it's realistic for modern homeowners.