Kirkhammer

This is a weapon within the Bloodborne game. I wanted to try something more difficult to enhance my skills; and so while playing some Bloodborne, I found this weapon to be good to model. So here is the finished result. The hammer and sword were modelled in Maya and extra details were made in Zbrush. All textures were made in Substance Painter and finally rendered in Arnold. Any feedback would be brilliant.
Reference - Bloodborne Concept Book