Wow, clouds!
Trivia: The tower on picture is Ostankinskaya tower in Moscow. It's height is more than 500 meters and it's seen through CastOut's window.
The scene design looks good, and the lighting on the character from the moon looks nice, but i'm not too fond of the colors you used. Since it seems to be a realistic scene, I'd go for less saturation on the sky, character's clothing and city lights, and try to improve contrast a bit between these things.
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