It would probably have helped had you put in the grout lines between the tiles.

for me there's two option:
1.try use bump material
2.adjust your lightning setup so that it minimize your image material

I guess miketyson doesn't need our help after all?If he figured out a solution, it would have been nice for him to share it with us, rather than just deleting his question.

Why share the answer when you can keep it all to yourself?Remember...Knowledge is Power.LOL

No wonder I feel so powerless. I've been giving my knowledge away all these years. Perhaps I should start keeping it to myself. I need all the power I can get.

You and me both.  Maybe sharing isn't all it's cracked up to be.