fixing slopes in a shower with decorated 20cm tiles

[amiti]

Hello,

We have chosen a painted decorated 20X20cm tiles for the bathroom with a walk-in shower and wanted to make the tiles pattern as seamless as possible. Are the tiles small enough to create fall to to drain without cutting them diagonally? I can settle for slopes that are 95% perfect and not 100%...
The contractor suggested linear drain but for now he has created a fix with a conventional drain slopes (a little narrow though)
What is the better way to deal with such a situation?

Your help will be highly appreciated.
Amit.

 

[Old Mod]

Only way l can think of is to remove existing tiles.
cut a new batch into mosaic sized pieces (20mm x 20mm) and get them mounted on to sheets, or do it yourself by sticking brown paper on the face and laying them as paper faced mosaics.
Your contractors idea is the best by installing a linear drain against the wall.