Concept by Seung Chan Lee at https://www.artstation.com/artwork/QKOEB
Added a simple explosion to be able to finish off the effect after going through the base explosion effect already in Unreal as a sort of tutorial. Also added a higher emissive and the drop of the cannon ball as it goes across. Added a rotation the the skull textures.
VIdeo of Effect

Concept by Seung Chan Lee at https://www.artstation.com/artwork/QKOEB