Yes black and white can be very classy and pretty. I do suggest you add a pop of another colour (such as yellow) or else you might get tired of everything being black and white. I had a quick look on Google for black and white bedrooms and there are lots of inspiring photos to see there. You could add the pop of colour with the curtains, cushions on the bed, a rug on the floor, a lamp shade, art work hanging on the walls, some cute photo frames or a bunch of pretty flowers in a coloured vase. There are lots of easy ways to add colour to a room. Have a look on Google yourself or on the Houzz web site and get some ideas. Wishing you lots of luck and have fun decorating.

I really like these [bed side tables[(https://www.houzz.com.au/photos/north-seminary-contemporary-chicago-phvw-vp~13970763) which are bespoke although too large for my room. Anything similar, but not as wide, in Australia..ideally Melbourne?

maybe change the brown to a softer beige, as as julie said white wash the larger side tables, leave the baskets natural, perhaps a Fokati floor rug, add a hanging light, what do you have on the larger window for interest you could add matchstick blinds cheap and effective you can even spray paint them, and add a plant

my suggestion has an ens and wiw and uses the old bedroom door for a linen cupboard, although the toilet could be placed at either end to be closer to the original sewerage, this arrangement allows for more privacy for the toilet, more standing room near the shower, wall space for a towel rail and room in teh wiw for a chest of drawers..the vanity is over 2m long with cabinet under the (one or twin) sinks and open shelves next to the toilet for towels .. and, while you're adding the new ens, it would be worthwhile to plan the new access to the kitchen and new laundry