Not bad, I like the color contrast. But right now if you desaturated this it'd be a sheet of gray- add some light and dark contrast where the focal point is!
This.
Also the biggest tip I can give you for environments is that things in the foreground are darker and more saturated objects that are further away become lighter and less saturated and grab most of the sky's color for the shadows (atmospheric perspective). Shadows at that distance become color and there usually isn't a lot of contrast between the light and dark side of an object, It's just hue shift.