I really don't know how to draw montains

I'm thinking creating a new game... I've not given much throught to it, even because I was just drawing when I got this idea. So I'm accepting sugestions.

It's a Flappy Bird clone game I'm making :)

Coding a loading screen :D

It's almost there! - Gold Empire

Beautiful menu?

Drawing montains.. (with the same pallete)

Testing a new pallete :)

Trying to draw montains again...

Another sort of montains...