Don't limit yourself to the "opposite color contrast" idea. Just use whatever colors seems harmonic. Good picture but almost everything is orange-blue, so I can't really absorb the beauty of the landscape because the color contrast becomes obfuscating. But still very good.
I feel the lack of green for example. Where's green? I also feel the lack of something else, maybe plants, trees? There is no plant at all . Anyway, it's very good, maybe it's better the way it is, after all it's sci-fi and not all pictures have to follow the same rules so maybe everything fit together here.