Thank you! I sometimes decrease the amount of haze and at the same time also the saturation of the bluesky density colour. This makes the image a little bit clearer. It depends on the size of the scene and the lighting.
The bushes are grassclumps, but not the ones that ship with TG, but ones that a former member of this community named Lightning shared with us. I still like to use them although they are not available anymore, but there are lots of other very good grass objects in the files section.