bamboo or woven roman shade in a medium honey color with lots of texture would look lovely, casual but tailored . Not too overpowering for your subtle wallpaper which is beautiful. dont forget privacy liner. most bamboo or matchsticks are see through.

I have to agree that glass film is brilliant- we used Purlfrost online. You can either pre measure and they will cut for you you or you can buy a piece and cut to your own specs. It arrives rolled in a tube. We've done two rooms- the living room with full frost and the other, a bedroom- with just the bottom half of the window covered which looks pretty modern and sharp. It was supposed to be a temporary solution till we got shutters organised but it looks so effective and fresh that we've decided to save the small fortune that shutters cost! The help line was great- they recommended leaving a gap around the edge near the frame for a beveled glass effect which did actually work! You can get different levels of opaqueness - we used the less opaque for more light but still private- or patterns or stained glass effect. Its really easy to apply yourself too, and apparently comes off with no damage to the glass at all, so good if. Works out really economical as well. Can you tell I'd recommend it?! :)

Sorry, yes, I didn't explain very well, did I... I meant that as your room seems to be quite light, floor included, a dark grey that matches the bird on your wallpaper would give you that wow factor (pic1 below). You could then work on the layering textures within the same colour palette too with the rest of your accessories (rugs, mirrors etc). Or if you're not too keen on greys, pick out one of the other colours if you prefer- you have a good selection of pink, blue, green or yellow. As long as you match the exact shade you can't go wrong, in my humble opinion. I've attached a few pics below to show you what I mean xx

Hi. I don't think a curtain/s in the middle will work as you'll have the radiator either side plus a potential issue with the poles? Why not try Romans (if they fit, as i can't see the inside of the window frame!) and a single curtain either side? Rather than use tiebacks so they're draped across the window just use a holdback similar to the pic so they're held back instead. This one obviously has a pelmet but you could add poles which just overhang the top of the window slightly