Thanks a lot for kind words, I really appreciate :)
The lightning was done with several light planes with different temperature, I experimented a lot with sun/sky and HDRIs, but as this is not complete interior, I ended up with some kind of "product shot" approach.
As for the floor color, this is old painted wood, it looks pretty similar to the original image (at least with the printed one version) :)
I slightly changed the color balance and the overall mood of the image, so maybe this is the reason.
Cheers!