You could also try to make material texture a bit smaller... (if you render in Vray, go to material/ color "M" - bitmap/ REPEAT / - change the value from 1 to a bigger number. N.
I changed my material to textured concrete and reduced the size. furthermore I found a tutorial that showed me how to block out the sun going into the building from the cut so the image shows the actual light quality of the space and how you experence it just with the light coming form the windows (and interior lights if added). In my mock up layout I have my final images.
correction : the images are not the final ones.