Hi Lopakam,
this is starting to look way better! ;-)
IMHO I would do a little tryout with positioning th sunlight.
for example, if you place the sunlicht more to the rich and back, you get a more interesting render.
if you don't mind i did a quick one on my laptop (perspective is way off, but you get the idea)
one is more or less the wa you have the sun setup, the other one is more back-lit.
this makes a better contrast in the image and brings out the tables even more
kind regards
Menno