This is a stunning new Deco bathroom design, with a strong Cubist style. The colours & patterns are very geometric - we have shown lots of colour variations below. The vanity unit has a stepped plinth, with a stone worktop. You could either use an undermounted sink or a sit-on bowl. Use a matching stone upstand on the vanity unit & bath, for practical reason & to visually tie the suite together. We left all peripherals off the design (ie shower screen, fittings, etc,) for clarity. The wall mirror was just an idea to tie in with the geometric shapes, but this could be a mirror cupboard or other design. We would make this bathroom exactly to your requirements, as made to order. We can also adapt the design anyway you want, and you can also choose any colour you want.
A floor standing vanity unit is one option, or you could go for something more minimal with a wall mounted version vanity unit, as shown above. Again depending on the height you place this you could use an undermounted basin or a sit-on bowl. You have less storage with a wall mounted vanity unit, as the plumbing must be hidden within the unit. The mirror cabinet wall unit is another idea you could go for, with it's stepped Skyscraper profile & lots of storage.