For example, in Maldraxxus, one of the big challenges is that there aren't any trees in the zone. We had to find elements that served that same purpose on the screen - vertical forms to break up the horizon lines. And we ended up with a bunch of interesting solutions, these insect hives that sit up on these creature bone legs. There are bone tumors growing out of the landscape that are like mushrooms but not quite, and then you have fungal spaces in the zone.
