I tend to agree the skybox should be a darker starting color, because when the ground fills the screen it really brightens the sky a lot.
Other than that, these are some of the best realtime screenshots I have seen, ever. It's certainly much better than S.T.A.L.K.E.R., and looks as good or better than Crysis.
I can't say exactly why, but this is so much better than your previous screenshots. This is the first time I have seen really good outdoor scenery in Leadwerks Engine. Definitely better than most AAA games I have seen.