That carving is exquisite and complicated. It shows up well because the light reflecting off the carving highlights, the dark around the carving, contrasting against a smooth background.
Should the wood be very dark, you will be relying mostly on the reflected light for the carving to show up.
Polished carving tools will leave polished cuts, which will accent the carving to its fullest. You don't need great height on carving, it merely needs to catch the light to create the illusion of three dimensionality.