Yep, looking good, sir.
If I may offer two uninvited criticisms:
1. in general, the marble looks just a bit too perfect
2. I might think about tweaking the wood material
For the floor, it looks like you have a 4x4 tile texture map; I'd be curious to see what would happen if you copied the dimensions of this map, partitioned the new map on the old grout lines, and made a normal map where each tile was uniform, but just a bit different than the other tiles, so that you could simulate the minor out-of-level condition which would likely be present when a floor like this is laid. That's all theoretical - I'm not sure that this would work, but it might. Then, I'd maybe add a very slight roughness map as well, based on the graining in the original tile map.
On the wood material, I'd play with the weight and Nd of the gloss layers, as there seems to be a bit much white reflectivity with the more direct viewing angles. However, I've seen finishes similar to this before, so possibly you're getting exactly what you were going for.