AH, now I understand.  Decrease your Infinite light intensity and double check if the skydome is emitting any ambient light.  The photo example is basically diffuse lighting with very little specular except for reflections.  In that case, your light source would have a more bluish cast.  But your scene is in full sunlight with a high sun angle; your source would be casting a warmer, perhaps, a yellow tone.  I see that you are concerned about occlusion in the shadowed corners; make sure your shadows Min Bias is low (0.1).  

I typically lower the diffuse values on all material zones on all models in a scene, that reduces the amount of diffuse reflection from the surface textures.  Also, you will need to adjust the light intensity.

What is your Infinite light intensiy?