The render you posted kinda resembles a Smoky Pub, on karaoke night
Which isn't a bad idea for a scene Just throw a full size Mic stand and go with it...
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"Your weapons are no match for ours! People of Mars, surrender!"
"Um, this isn't Mars. This is Earth."
"Earth? Earth-with-nuclear-weapons Earth?"
"Yes."
[long pause] "Friend!!"