Do you live in a warm country - then you might want cool colours: pale blues, greys or greens. I would leave your bathroom as it is - love the niches. To add some cosiness to the marble floors, find a nice cream carpet and cream furniture and then use this as your base for colours that you like. BTW what colours do you like? What inspires you. When you travel or go out ... what is that makes you happy? This will help

I would say at present your room is too crowded. also too bright /shiny colors. In India large / wall to wall rug/carpet can be problem with dust so a small cotton rug/carpet/dhurrie would help you. Also as Celerygirl mentioned please remove those sofa covers. add few cushions with nice cotton covers (ikat/block printed covers are quite cheap and easily available online) Get simple cotton/ or mixed curtains. Some wall art/framed posters /photos would be nice on walls. Also sheet on the diwan should match the color of your sofa.

Please try Tata Concrete pigments.

Greetings From Dream Design, As per your Requirements we are suggestion you some changes -White color -where It is Grey -Dark Cream -Where Blue as it will highlight that area and also well goes with Bricks -and Trims take Dark cream -For Shutters you can also use Cream color So use the White and dark cream with combination as brick part is already dark If you need more help Pls mail us. Thanks Dream Design