nice joints in the slope. do you cut all the small tiles?
yesterday i fixed only 9 tiles on a long day. it was not easy. the tiles have 14mm thickness and i have to calibrate the shower to one tile in the wide. and the alurail for glaswall later has to resessed. so i used ardex x32 because it can be used until 30mm mortar bed. (75kg for 9 tiles!!!) i floatet with a 15mm middlebed trowel and buttered with 10mm. sometimes more and sometime less. i take the tiles with a double sealed vacuum handle. without this tool it wasn´t possible to carry the buttered tiles alone in this height. it was mental not easy to trust this tool.
demotivating moment was when i set a tile and knock it with the hammer the edge touch another edges and "zack" a glaze springs away... so i later just knock it when i space them with the wooden wedges. on the tool pictures you see my custom made wet saw for perfekt long cuts until 220cm. i test the dry cutting with my 120cm kaufmann cutter and it was ok but it was not save brackage on the end. so i decided to use only wet cutting. it takes more time (15l water for 1 tile needed) but it is 100% safe and the edges are perfekt. for this projekt i bought a new drilling machine. my other one is limited on 40cm wide. for the 45degree cuts in the niche i use my little wet saw. crazy, such a machine park for only a shower!