Where's the logic in that?
The territory is a desert, but the arena is grass?!
And in general, if the Wizard Necromancer exports some objects from G6/G7 that are more or less suitable for elementals, we'll make them a flying arena.
By the way, why did you decide to change the native lands of the dwarves?
Added 26 minutes later
I really like the first option. Maybe if you add the Faceless One's face to this titan, it will turn out something like the puppets from Heroes 7, only much larger. That's interesting :D
I'm not sure that a dragon-golem will look good as an alt-upgrade; it will stand out too much.