enduring used marble and white tiles in a beautiful way (on the walls rather than floor, but I think the idea is the same). It would depend on the marble look tile you have, I think. If the two tile types are on different surfaces (walls v floor) try to view them perpendicular to each other, rather than in the same plane.
Do a search on enduring's name to find more pics - this isn't the best one, but the first I found.

Here is a link that might be useful: enduring's bathroom