Oh my this is stunning.   Can you give us some details on how you made it? 

Thank you!  I used a metal rod for support.  The cake board sits in the bottom quarter with four layers of cake stacked on top.  Below the board, shaped RKT were glued on with royal icing.   An airbrush was used for most of the shading.

I did have an issue with the spikes staying in.  This is probably due to using Swiss meringue bc.  I am not very familiar with it but was doing an experiment.  I will not use it for a cake like this again hahaha.