Nice! I like the colors in the rocks.

 I really love the textures and colours of the rocks : D

 Good for a video game

I like it : )

I really like this.

Oh, my mistake. As a background, it's great.

 Well I'm not sure if it really needs a focal point because it's a background for a side scroller.

 Awesome palette.

I think even a landscape needs a focal point- a mountain in the distance that's taller than the others and has something at its peak, or maybe a road in the foreground with a wagon on it.