Feature floor in hallway

I was asked to remove a badly damaged Victorian floor which was under a carpet and replace with modern porcelain tiles.
After removal of the old tiles some of the concrete came up in chunks so I put a mix of sand and cement in to fill them.
I used tilemaster flexi level to smooth out the floor and laid schlüter ditra 25 to act as a decoupler and dpm. There was a few big cracks in the concrete and as the house was over 100yrs old there would be no dpm.
I laid the porcelain 200x200 tiles...

Click to expand...