Not entirely sure what's going on here - it seems to be a big room with lots of space for more furniture - so, if you need more storage in the bedroom, get a bigger/wider dresser for the area in pic 1, move the TV out or hang it on the wall, put another dresser (no mirror) in the area where the chairs are in pic 2, and set up your robe in pic 3 so about half of it has two sets of rods, one about halfway down the wall, to hang shirts/blouses etc. Double the storage in that amount of space.

yes. stallion looks like it is in a sample hanger with all or most of the various colours available. your other photo with the 6 or so swatches looks like all warwick samples. The Bleecker pleat does look interesting. I haven't seen it in Australia. Just remember any 'different' headings will substantially increase your making cost. Making cost is usually not unreasonable in Australia in my opinion as we have regulated wages etc. so making will change depending on how much labour will be involved. the most 'flexible' cost with curtains is your fabric as fabric cost can have a very wide range as you have no doubt discovered. but the making cost is the same whether the fabric cost $25 per metre or $250. the labour is the same.

Tiles will need a very stable base to avoid cracking if the house subtly moves. We’ve had a couple of very solid floor tiles break after minor impacts in our pre 1947 Qld home. Laid in the bathroom, to code, but still fine cracks in a couple of places. All doable on timber floor, but not as straight forward as laying on a concrete slab. (I love cork for all these reasons and it doesn’t have to be scarey orange anymore. Very flexible and durable but I know I’m firmly in the minority with that one!)

It is impossible to say without seeing the unit and understanding the natural light and the other colours. I would check out this link from Dulux, then run down to Bunnings to get some samples. https://www.dulux.com.au/colour/whites-and-neutrals/most-loved.html Dulux Vivid White always works well on 1960's trims and doors, but it would be too clinical for walls. Best of luck, Dr Retro of Dr Retro House Calls