I am assuming you haven't finalised your wall colours and colours of any other fixed elements. In case you have finalised your color scheme you would need to see which of these colours blend well or complement with that scheme. Assuming none of this info is available, then you could look at the neutrals which go with all colours. The white tile and the 2 colours at the end would be preferable. If you want color on the floor as well as drama, you can choose from the 2nd options from both sides or even the 1st from left.

What is the dimension of your bathroom? Looks like 4 feet wide, can't make out on length though. Glass partition or tiles partition for shower would help to keep your bathroom clean and dry and revamp look drastically. Wall hung WC is must, again from cleaning and look perspective. If window is not providing any light ( though your photo suggests some light coming from window) this area can also be used for multipurpose. You are welcome for more queries. Tiles selection can be decided based on a theme as well.

@ Divya Sreedar. You will have to contact all of the ceramic boutiques that deal with imported tiles in Chennai. Attached below is a photo from AMSET ONE store in trivandrum with the subway tiles on display as I have seen. It takes 3 weeks to arrive from order date. If you like us to deal with the purchase please contact us or you could call them directly to find out.

Hello Ash, Jaipur Blue Pottery tiles are definitely suited for kitchen backsplashes and are heat resistant since they are fired in a kiln like other ceramics. I bought mine from a vendor in Jaipur, and got them shipped to Bangalore. Just make sure to be very very clear on what you want - hand-painted or screen-printed tiles; there is a big difference between the two. Happy to discuss further. Thanks, Gargi