Applying fondant on a cake question?

If you have two halves of a cake, say, the top half, filling, then the bottom half. Would it look odd applying the fondant over the cake? Would it droop inwards because of the gap? Just like a piece of paper would droop if you hold in loosely on either side. Note: The buttercream would already be... show more If you have two halves of a cake, say, the top half, filling, then the bottom half. Would it look odd applying the fondant over the cake?
Would it droop inwards because of the gap?
Just like a piece of paper would droop if you hold in loosely on either side.

Note: The buttercream would already be added.

Also, rate out of 10 for how hard applying fondant is.
I've never worked with it before, thank you! (:
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