Ahriman
Tyrant
the Anvil of Doom can simply be represented Graphically with the Runelord.
If thats all you mean (in the rune thread) then its completely fine. I have nothing useful to add about art or fluff.
If the dwarves have limited mobility, which they should, I strongly support the idea of 2 range artillery, with national cap.
I don't see how a mortar's 2 range relates to limited mobility IF as I think was suggested they can only attack and bombard city tiles.
I'd be ok I guess with trying a mortar as well with a small unit cap if thats the consensus.
But do we really want a dwarf cannon, organ gun, flame cannon and mortar all available at cannons tech? The organ gun should probably also require steam power or advanced engineering. Maybe the flame cannon would also require engineering? Or should we go bolt-thrower instead of flame cannon, to help spread their siege units out over the tech tree (and over the game), so its not just grudgethrowers and nothing else for most of the game and then.... a massive explosion (heh) of of siege units with the cannons tech.