/ic/ - Artwork/Critique

Any tips before I go full autism applying more detail?
Honestly I didn't know what the hell was I doing with that monster in the sky, I just wanted to fill that void and decided to do something creepy.
Ideally the city and monster will have some red lights contrasting with the blue scarf on the girl, and it's a cloudy day so the sky is gray. Idk why I say that, I should just do it.

Any tips with the composition perhaps? Should the girl be lower and the buildings higher? Or maybe viceversa and the girl being higher and the buildings lower would give a better overview...
Also maybe I should draw a monster or an asteroid or some other stuff instead of a giant building, it kinda stands out from the rest of the city. Anyway this is what I'm doing right now