If you plan to make the shade yourself, I would use a batik fabric backed with blackout lining (for the darkness you desire), it'd tie in perfectly with the theme you have going. Here is one DIY roman shade tutorial.

Thanks for that suggestion ghostlyvision - just looked at Batik fabric and there seems to be so many to choose from. Would there be a particular design you would suggest and a colour? The room is fairly dark already and only gets morning sun...

Thanks Annie. They look lovely. I will certainly have a think about something like that as never considered doing a pole just the width of the window.

Slightly off-topic: how do you like the Calke Green? I've used it before, in a dining room and a living room, and absolutely loved it.

In the living room I had curtains with a small floral pattern on a cream background; the pattern was a soft grey and little green leaves in a sharper green than Calke Green, but the overall effect was really pleasing. That room had a lot of natural light - windows north, west, and south - and it was lovely and warm in daylight and electric light.

Loving Calke Green thanks. Mine is used in a fairly dark room as only gets good natural light first thing in the morning but I generally prefer a moody look and goes with the theme I am trying to achieve - unfortunately my partner doesn't but allows me to just get on with it. Your room sounds lovely and lucky you with all the natural light :-)

I have twice done a daughters room with this theme...For one, I found vintage saris to be a great source of lovely jewel tone fabrics. Check Ebay.

Also, I see you're handy...I have also taken plain fabric (I was making a padded headboard) and stamped a gold border using a swirly stamp, but you can use anything that gives the the feel you need. Once ironed, the paint sets making it washable on delicate.

I would have no problem just using an inside tension rod in that window space...

Could you adapt one of these to fit?

If the holes let in too much light, you could staple fabric to the back of it.

I have no ideas for the window dressing but just wanted to say I really like the stencilling on your door!

Thanks pennydesign for your advice - not sure a tension rod is a look I am going for although it would be practical. I love the idea of cutting down a room divider like the photo you sent as certainly keeps with the look I am going for - I would need to find one that fitted the recess with a bit of adjustment and would not be comfortable ordering one online. Had thought of this idea before but the sun streaming through was my concern and never thought about stapling fabric to the back so will definitely think about this idea further. Thanks.

Thanks A. Absolutely loving that photo and the idea of turning a fabric into a shade is something I will look into now as a Roman Blind was the only idea I had with using a fabric.