Thanks for your comments (and animated gifs, Phylloxera ; )
Terrain is created using TG2s intern Terrain-Functions and Displacements only. I still struggel to get the results I aim for, but still I like how this tourned out. Nevertheless the foreground needs a lot of improvement, but
@Tangled-Universe: Well about the clouds, you're totally right, I'm not that statisfied, but all other attempts were even worse (converning the cloud's structure). I have to mention that there is only two layers of clouds, one 3D which surprisingly resulted in the smooth lower clouds and in the thick, over-structured higher clouds, and a 2D cloud for the high Altocumulus.
THe surface is done without textures which I'm a little proud of. : D
Nevertheless, due to the fact that my render already crashed once, after wasting over 10 hours, I won't stick to this one and start a new project.
But I sure appreciate your tips, expecially on the TG-1-look foreground and the ckouds and try to get into objects a little more.
Dasvidania,
David