For the sanitary ware go with wall-hung or standard close-coupled toilet and basin with pedestal with acute angles and a contemporary design. Abstract towel rails and wenge wall-hung furniture fit well in the fantasy bathroom giving it that calm almost surreal look.
Counter top basins are highly recommended in this setting and the look out for extremely unusual decorated designs. Place it on a washstand or run-down vanity unit. Add unique ornaments and antique framed mirrors.
Pay Attention to Size. If you plan to use the same insert location where it already is you will need to shop for bathroom basins that fit that same size. You will also need to get one that is the same shape. Some are square or oval while most of them are round. If you want to completely change it up you can go with a different size and shape.