Quartz blocks on the side, and a Quartz Stair filled with water. The Mirror is a wall mounted Banner. You can get the Banner Recipe from here:
https://www.needcoolshoes.com/banner?=hapmppmKacpc
Below is a Washbasin made with a slab, and a sign placed onto the slab, with a lever for the tap.
Below a Minecart on a track between two blocks. Hatches used for Bathroom Cabinet effect.