@jiminy-billy-bob said:

Try to subdivise the geometry of the carpet.

Hello, It is already very subdivided - i used artisan tool - subdivide and subdivide and smooth.
Maybe it is a problem with light cache, i really don't know.

I generally use just perspective. The whole trick is composition, i.e. how you fill the "frame" with the subject matter. Filled and finished foreground and backgrounds are also key in making a pleasing scene. Then you can work on camera "angles", which is just placing the camera.

I am by no means as good and some here when it comes to picture composition, but the above are just basic principles.