You could consider ripping out the shower base and tiling the existing 830 wide and extend that all the way to the existing bathroom wall at the opposite end of the bathroom wall. It would create one wall at an angle but with a seamless glass shower screen and a new tiled floor and walls it wouldn't look out of place. That would allow far better body manoeuvring in the shower.

expensive to lay them but worth the money, the bathroom looks fresh and contemporary but more contrast could have been used maybe the floor tile running up the end shower wall, may have been a highly pattened tile, or different shape, smaller of bigger tiles, but that is nit picking. love the timber vanity maybe a bit to close to the floor, but 9 out of 10.

For vanity top, chose either a laminate, or engineered stone such as quartz eg: caesarstone, Essastone or silestone.You can get some wonderful laminate colours now, at very budget conscious prices. Look at Laminex and Polytec brands. Acrylic bench tops, in my opinion are dated. Have you looked at the semi inset basins. Basins really come back to personal preference for shape, height. If you have a basin on top of bench top, then install taps in the wall. If you choose inset or semi inset basin then taps installed in basin. Shower must be no smaller than 900 x 900mm. Freestanding bath would be a waste of space in your bathroom. I have attached a photo of a semi inset basin, (caroma) on a laminate bench top (Polytec)

And to answer your question siriuskey. Yes the front room has been opened out into a verendah. This room got really hot in summer so wasn’t working as another living space. We’re restricted to what we can change at the front of the house as we are in a heritage area. We can make changes without a DA if we don’t change the front of the house. Agree we can change a lot with a wooden house, but I think we’ll be restricted on reusing windows. All our casement windows are original glass from the 1930s so won’t be to modern building code. If we move them, they’re gone. However replacing with modern glass would bring more light into the home. We’ve put fans in all rooms and always have the French doors open in bed 2 so light and ventilation haven’t been an issue. Might become so if we put a moody teenager in there though!