Diagonally positioned tiles create interest on a floor. However, be prepared to have a lot more waste than if you were to place them parallel to wall. Before you decide how to install the floor, consider the overall look, feel and style of your interior. Tiles installed at a diamond orientation communicate more of a classic, traditional interior than the parallel method. It is more a matter of aesthetics than anything else.

I didn't realize it was a faux stone pattern. There is nothing you can do to hide the grid pattern I am afraid...However, as it is recessed in a niche, I am inspired by your windchime pattern to think of adding eyelet hooks on the top and bottom that align with the vertical grids and uplight them from behind...This idea but with less vertical rods, and then uplit to give an effect like the second picture...

@Rock Doc: Are you addressing this to me? I haven't actually bought these tiles yet - when I do, I will definitely be going for the handmade ones. They're a work of art and irreplaceable in my opinion. However, there are also screen-printed tiles available in the market in more or less the same patterns; the workmanship is of course different, but you get them cheaper, and they're also more easily available. You could give that a shot. I'd recommend Aakaar Flooring Solutions - they're here on Houzz and are able to provide both the above-mentioned types.

Yes they are very eco friendly and even if they’re smooth, they are non slippery. Also, they are suitable for all kinds of weather and can be used both indoors and outdoors.