Wait, art of elephants?!I swear, if you win I'm changing the prize to the art of Elephants
Best of luck.
Dave
I think I'd agree with the modern stadium, I definitely want to do something more original, I just don't know what.A modern stadium would be ok... but I think they are probably generally quite boring to look at, and elephants fighting kind of seems like it needs something more. (based on what I saw when I google image searched 'stadium' there weren't many interesting looking things. they were mostly standard and boring)
A Roman Colosseum wouldn't suit elephants unless they were standing up like your indiana jones elephant but in roman armour
A cave could possibly work, but why a giant arena is in a cave for I don't know. Unless you plan on digging out the cave to look like a modern stadium or something it kind of seems like an underground scene where elephants illegally fight each other
When you say sky I imagine the Skyworld level in smash brothers brawl and the elephants would fall to their doom when they fall off...