Perhaps keep the color as natural as possible to compliment the greenery outside.

Hi there, For your reference, I will attach a link to a discussion on the technical benefits of using porcelain tiles in place of polished concrete finishes. Although you may really, really want to use this technique or polished concrete, it would be worth a read, as if these finishes aren't installed perfectly you will no doubt find that common issues with concrete finishes may occur. I will also attach a couple of images to show you some of the concrete-style tiles available from us, as the designs are incredibly similar in look and feel to concrete materials, with huge technical advantages. Best of luck with the project! Kind Regards Concrete-Style : https://www.houzz.com.au/discussions/concrete-style-understand-your-options-dsvw-vd~1161877

Depends on height of the ceiling,and size of your room. ceilings up to 2700 tile to ceiling ( replace ceiling, it is not a good look new bathroom with old ceiling, unless featured ceiling, you need to remove cornice, Tile all walls to ceiling, add new cornice for professional look ) Have you thought of feature wall behind basins, same as floor tiles ?

Not a problem with regard to asbestos if built 1994 DESIGN Work backward from your envisaged complete bathroom, check out bathrooms on Houzz, ( Houzz is excellent, Enter say Average size bathroom, Industrial look...Reece Plumbing has more ideas and Pinterest Establish the " look " you are after Mean time Email/text the size of your bathroom, the position of window/s door and wall construction, timber frame or brick/cement block Access under the bathroom/slab? Height of ceiling, Proposed tiling height, Desired inclusions, e.g Separate shower, freestanding bath, Do you have a " plumber " and electrician " ?