Love blue tiles. Depending on how much sun and how hot your pool gets in the summer should dictate what color it is. We live in Arizona, so cool blues work best. Our neighbor has brown tile and a dark pebble tech pool. Looks like a swimming hole and gets really hot - 94% water in the summer. They obviously didn't think it through.

I quite like the colour scheme, it's looking good!

One piece of coloured glass will give almost the same visual appearance but without the hassle - I do however not have a splash back but I do love to watch many programs relating to renovation. You can also have a piece of art work installed behind plain glass - it depends on your taste.

Look at Houzz PHOTOS. Enter "labyrinth" into the search box. Be sure to use quotation marks when entering search terms. Houzz PHOTOS -> enter "meditation room" in the search box Houzz PHOTOS -> bedrooms -> enter "zen" in the search box. Also look on Google using similar search terms.