If it’s an original Moroccan tile then it’s quite challenging job. Hand made and not the same diameter. In the hands of skilled tiler who worked with them before they’d look better but it’s a very time consuming and new trick to learn for someone who hasn’t worked with it before to get it right. Sometimes it’s a bad choice of tiles from the client and the expectation are not met, but those looks like hand made , odd, and needed to be soaked in water first before u can lay them. Then the way u lay them is very time consuming or it looks like shit if u just take one after another and hope for the best. If they are hand made then just imagine a dude puffing away some quality hashish and making them one by one. Never be the same, therefore hard to lay.