I see you have raised the elevation of the sun instead of lowering it

The lighting is a bit dull now because there are not so many shadows and they're quite light. Funny by the way, because normally many people are complaining that their shadows are too dark

Anyway, the bluish-ness is indeed less.
This is not a standard easy to lit scene because the snow is white as well as the clouds.
If you don't mind you could send me the tgd and a link to the terrainfile and I could show you an example of what I have in mind

Martin