I love the aqua blue and browns you have for this room. Given your furnishings, they have a mid century modern style which you could capitalize on. (see the bedside table in this image is like yours)You can easily create a base of browns and a cream or patterned rug and then find some bedlinens in the cyan/aqua colourhttps://www.houzz.com/products/organic-ironwork-duvet-cover-prvw-vr~501905 and then find a fabric that matches your duvet cover to cover the chair...It would be nice if you could either spray paint the bed (which I think is black metal) a silver metallic colour to lessen a harsh line. I would also remove the shiny sheer drape you have in front of the curtains. Why are they there? You seem to have venetian blinds as well.Can you hang the mirror up higher or is it part of the dresser? The base should be about 20cm from the top of the dresser to create some height to the room. I would also lower or even remove the painting in the room as it is too high...For the other furniture, I would rather work on some simple basics and then we can adjust them around. I think your bed is in the only place it can be....

Many suppliers will put dry clean only on their curtains (including the custom made ones) to protect themselves from people mishandling the fabrics and if there's a block out backing on the curtain then this might not be washable. Linen will shrink if you put it into a hot washer or dryer but as Julia has indicated linen is a beautiful fabric to use if you do the right thing by it - if your wanting linen for the block out use a fabric backing rather than a linen that has a coating and make sure that the block out fabric can be separated from your linen fabric (curtain makers will hate it as it's a nightmare double handling, but if you're going to spend a lot of money on linen and for them to be made, it's not unreasonable to request this.

you could just pick a colour from your colourful rug to be your curtain colour ..you could also choose a pattern that's already existing in the room..ie swirls or flowery or stripes etc .. the fabric will depends on if you want flowy or heavier if you want two layers and block out.. and the type ..ie heavier for Roman blinds..and drapes etc lighter fabric for curtains

Going to be joining you annb - I've never heard there was a difference between curtains/drapes - it was more just a choice of wording. I've always had curtains and made them myself from scratch to have exactly what I wanted without the cost. I always felt curtains look more luxurious, really dress a room and give it a more finished look. The problem now though is being able to buy the fabric, there just aren't the stores like their used to be. When I find a new house to buy, it will depend on the style of the house, but I'm looking at just having blinds or maybe shutters, not quite sure what style though, it will be a bit wrench not having the luxury look of curtains and will take some getting used to.