After looking closely to all pictures, I think I got what's wrong : there is no HDR and "light", not even a little bit of it. That's why all looks flat. Totaly flat.
The game is supposed to be released in a month and a half from now, that would be hummm still one month of dev on it before gold. I really wonder if they are going to add the little things that will make the game look graphically perfect.
There is a perfect example of lights that look great in a game, it's Wings of Prey, on PC. There's a demo somewhere out.
Pics here :
http://www.flickr.com/photos/4625192...7623021332077/
Terrain has depth thx to some lightning and sometimes shadows (they missed some unfortunately)
Clouds have shadows on ground.
Planes are not "flat". Yeah they may shine a bit too much, still, in game, it looks terrific and every plane really has "volume".
A very good "water on metal" effect (metal + environment reflection)
Perfect volumetric light scattering shader (the best seen on all games, frankly) :
