If you prefer a more industrial look then maybe this is the look for you. This look is all about minimalist styling and understated elegance. Use the same basic monochrome colour pallet in different patterns and surfaces. For instance, this bathroom only uses shades of black, grey and white in different textures and finishes.
Why spend all that money going to the spa when you can create a retreat in your own home? Marble surfaces, bespoke stone sinks, great tiling, and soft lighting all add to that spa-like feel. The addition of a deep soak bathtub and maybe a walk-in open shower room can help to turn your bathroom into your own private relaxation area. Finish the look with bamboo plants and white fluffy towels.
A bathroom really is all about the bathtub and a luxury standalone bathtub can make quite an impact. Traditionally a standalone bathtub would be the antique four-legged version, but now many companies are offering a contemporary alternative. Just take a look at this stunning example from Victoria + Albert.