With white fixtures, keep your floors and all tile white or a stone that is mostly white. You can paint the walls above the wainscot (which might be glossy painted wood or beadboard, or you might employ a cabinet for the sink that was painted a very soft sky blue. One narrow trim piece of tile running through the white tile might be the same tone of sky blue. Then, add blue linens / towels / etc. [houzz=] Now, consider what other colors are in your home and select one that is clear and soft and lovely with white. You might use that color instead of sky blue. I used sky blue because it is the color of water and therefore always appropriate in the bath, but you can make the bath flow with the colors you have or plan to have in your home. If this was a master bathroom instead of a common or guest bath, I would shift the choices of stone and tile from white plus white to a lovely off-white, cream, or almond tone - like travertine. Use a neutral like chocolate on the cabinet and add color only with linens and perhaps some art on the wall. [houzz=]

Dimensions are not legible in the plan. Whatever we could make out that is not matching the ones you have mentioned above. Please recheck if the below matches with the floor plan that you shared. Bathroom 1 (brown tiles) - 7.9 ft x 4.1 ft Bathroom 2 - 7.4 ft x 4.1 ft Bathroom 3 (blue tiles) - 7.3 ft x 4.1 ft

Go for ceramic mosiac glossy or subway glossy tiles

Priya,  There is no end to wishlist :). It's a new home and remodelling bathrooms may be a very costly affair in terms of money and efforts/time and sometimes approvals from builders. Before indulging in the process would give a straightforward suggestion to check if you would really like to do that now. Remodelling this with thorough water proofing may cost lakhs and some 20 days of effort. Take your call if you are open to it  Thanks, Nitin Cornerstone Designs Bangalore