My advice would be to get rid of the blind as you won't use it once you have the curtains - perhaps you could use it elsewhere or have it as a spare. You would probably find that without the blind you will use the access more often. I would do full height and full width drapes - an inverted pleat is attractive with heavier fabrics but if you have the light fabric on the top keep it simple. How about putting your sheer lighter drape on the side closest to the bedroom and have the blackout lining behind. This gives softer look in your room. You would probably find that without the blind you will use the access more often. If there is a lot of sun take care with the pure linen cotton and natural fibres as they will rot with light and sun. There are many synthetic linen look alternatives that are less expensive, last longer and have the same look. I feel your room could do with some texture - you could possibly have a subtle self coloured stripe in the drape - or go plain and have the interest in your bedding. If you want to go soft grey drapes I would go for a darker charcocal or midnight blue/ teal colour on your walls which would look awesome with a soft grey linen look curtain and natural bedding. You could introduce soft mustard, peachy pinks and soft apple green linens in your bed cushions.

I agree with Mel N. It's a relatively closed space and I think with the frames and the light fitting, less is more. An obvious curtain rod would be a step too far I think - pleated curtains on a hidden track would be how I would go.

There is not much room for block out curtains to stack on the sides of the end windows, a better option would be to use screen roller blinds for privacy during the day and Roman blinds placed over the top for privacy at night. Roman blinds are great if you want to bring colour and pattern into the room and add a playful vibe. Image - Silvia Rajek Interiors Alternatively you could run a rod across the whole wall and have sheer curtains ( closed most of the time) and have block out roller blinds on each of the windows for privacy at night image from Pinterest

You will need double tracking or double rods . These will use double brackets which extend out further .If you are on a budget then Spotlight or Bunnings for the rods and Spotlight will have ready made sheers and classic curtains . I have just ordered double rods cut to size from Curtains4Australia and their prices were good . For the curtains and blinds look at BlindsOnline and their huge range . They will send samples of your choice out to you and have a range of fabric prices . If you need help measuring or any questions , then you can ring them and speak to someone who will explain and helping give you options for your window .I have used them for five rooms so far and they are spot on . I will be using them for the rest of my house except for the main sheers as I am after a particular shade and weave . ( I Seek Blinds - I haven’t used them yet ).