What's the height of your bathroom and which geyser type ( horizontal or vertical ) you are using at present, all depends on these two things. If you've not bought the geyser then you can opt for horizontal one for the convenience of installing a false ceiling and then on one wall install the geyser. OR You can have a FLAP customize beneath the geyser for the maintenance and have the false ceiling too. For any query, you can revert back.

For both you can go for. It usually looks good for a flat nowadays. Everyone is doing

Hi Samata, You can go with the cornice ceiling if you have some other source of light in your room other wise you can go with cove lighting too if you don't have the specific source of light apart from this.Since the texture of the sides of the doors are dark so it would really goes better with dark shaded cornice ceiling style. Further it goes matching to your flooring design too. You can also add some finish to your wall like in the above ones to bring out a good look to your room or passages. As the colour of the cabinets matches with the flooring style too. i hope this will help !

If you want unique designs of ceiling you can use pop which is easily moldable and good looking .. otherwise gymsum is also a good material for ceiling