Using square tiles in the bathroom

Recently we had one of the tile suppliers in our office presenting their new collection and they mentioned that tile sizes are increasing every year. If 50 years ago it was fashionable to tile the bathroom in 30x30cm tiles then now the most popular sizes are like 60x60, 90x90 and bigger. But at the same time modern retro styles are quite popular too and when we saw those lovely bathrooms (first 4 pictures) finished in small square tiles designed by Australian Designer Dan Gayfer Design, we fell in love. Contrast grout makes it quite special too.