One thing to consider is the look from the window frames themselves. Could they be plain or very elaborate? If they are plain the treatment you add will have to be considerably more ornate to compensate. If you have ornate frames they you will probably must be less fussy in what a person add to the window, using a easier material or simpler form of blind or curtain.
For your less ornate frame consider adding a valance or perhaps use curtains along with a ornate tie backs.
The next thing to think about is how much privacy you will need. If you have a lovely view above rolling fields with almost no people coming by, then you certainly dont have such a consternation. If you have a busy road with many different neighbours and visitor walking by then you might want to think about cafe curtains which can stay sealed all the time at the bottom but still permitted light at the top. That way you obtain the light and keep your privacy.
A further consideration is if you need to let in air with the windows and have to open often the windows regularly. In this case this particular make mean you have to secure open curtains or sheers with an extra pole or clips to stop them getting rid of in any sudden gusts regarding wind. You also need to consider in case the blind or curtain likely to get in the way of the window opening.