Just watched it right now. I really like the overall scene, but i have a problem with the colors. I don't know i just have the feeling that they aren't "right".
Also i noticed that your athmospheric scattering shader makes some nice bloom artifacts

But overall a very nice demo video. Shadows are high quality, also Ground Tesselation is awesome, i really like it!

Maybe you could add a nice little decent light scattering effect, not much work but gives an awesome quality improvement imho