This is my first background, i did it with paint in about 1 hour. I'd really appreciate any c&c you can give to help me improve it.

I wanted to make the whole background affected by moonlight, that's why i used all these grey-ish colours, but it looks rather flat and i think the ground and mountains lacks some details/texture, any idea?
Thanks.

I wanted to make the whole background affected by moonlight, that's why i used all these grey-ish colours, but it looks rather flat and i think the ground and mountains lacks some details/texture, any idea?
Thanks.