Maybe some floating shelves on the wall against which the bed will rest? Obviously taking care to ensure that they're not at a height where your daughter will hit her head getting in or out of bed. Or you could move the bed to the wall with the window which would enable you to put a taller than standard bedside table (or even the desk) near the head of the bed. Moving the desk might open up the space at the door for entry/exit as it looks a little cramped at the moment with the design and wardrobe.

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?

Hi Bee everything you have done looks lovely but it lacks practical storage. The day bed does take up a lot of space but if hubbie loves to watch Netflix can't argue with that what does he watch it on? because you are video conferencing it would serve both purposes to have a larger screen on the wall opposite the lounge above the desk for Netflix,computer and conferencing. The pretty open floating shelves currently above the desk be moved above the lounge and replaced with full width and height bookshelves Your new hanging book shelves really are only decorative and will block the view into what is already a cramped space and won't store very many books can you use it elsewhere. The art work on it's own would look better and more open. Can the rug be pulled back further or sideways to avoid the door You need to try and keep things off the floor to give a more open feeling. I hope the following might help to show where I'am going with this (siriuskey)

"Determine the function! I am leaning more towards an elegant office set-up which doubles up as an informal receiving space. So that's why I wasn't really thinking of built-ins as I don't want the space to look too much like an office. More like a "study-library"." Function determines what you need in the room. If you need a work space you need some sort of storage. Built-ins can maximise that. But if all you need is somewhere for your laptop and a few bits and pieces a desk with drawers might suffice. A library indicates books, which again benefit from built-ins. But perhaps you are picturing just a few books say on a floating shelf and a few pieces of art, a library-ish room but not a book storage/reading room? If you do want to read in that room you might want a comfortable easy chair as well as a desk chair. I'm not sure what you mean by "informal receiving space" but that implies more than one person needs somewhere to sit, in which case you need more seating. So shelves, chairs, desk, etc, you probably need to get an idea of what you need to fit in the space. Position of door and windows will make a difference too, for example a lightweight two-seat sofa could look fine in front of a window where a tall bookcase would look wrong.