makes it easier for others^

The thing about mountains, at this scale they are far away. So the mountain in farthest back should have less saturation in it than the ones in the front. Compositionally, the piece could have more of a foreground and mid ground. Or you could have more interesting mountain shapes.

example of atmosphere/composition:


Anyway, just keep at it and you'll get somewhere with it. I like the idea of their he moon lighting the mountains(probably need the light to have a bit more direction to it). Maybe add some clouds? Anyway good luck, hope this was helpful.