From what I can see, the top tier is covered whole with green fondant. The light brown part is a layer above - wrapped around. And the white part is thin long roll of fondant on top of it.
You wouldn't usually need RI. If the green layer isn't completely dry, you can simply press the other layers on it or mist the brown part a little. This should hold.
That makes MUCH more sense! I am always making things harder than they are! Thanks!