how about continue boxing all the way to the window and use it to house concealed shower pipes and taps also. adding a niche for shampoo and soaps / candles. to have a mirror cabinets above the sink and toilet and under sink cabinet. also fill the gap on the other side of the bath adding a cabinet for laundry / cleaning stuff.

Oh and meant to say I presume the poster created the drawers to the homeowners' taste, and they do look like a more efficient and organised use of the space.

Hi, I am looking for a company that sell/make bathroom vanity units with a work surface to match a marble travertine floor. The splash back will be fired earth marrakech (the background perfectly matches the existing marble floor). And the vanity unit can be left as a base as i intend to paint in farrow and ball railings. Any advice please?

I think it will be fine. Here is a photo of mine. The unit is 92 cm from floor. Then basin approx 7cm. I did choose a shallower basin than you are suggesting as everyone told me it would be too high. Pleased to report it isn’t!