Some worthwhile alterations:
Use wood for a warmer look : Add wood surfaces wherever possible to make a basic bathroom feel more cheerful. Find yourself a wooden vanity unit, or add in some shelves to incorporate natural wood into your bathroom.
Choose surfaces carefully: A great idea is to use tactile surfaces to help soften your bathroom and to up the luxury. If you are unhappy with the current materials, there may not be a need to rip it out, speak to an interior designer to plan a way to incorporate some new textures into your space.