IMO, a silk or satin would be WAY too formal a feel for your more casual space, and mix of styles in your cabinetry, dining set, etc. I would think about a linen look that would be in keeping with the beach cottage look that you are working toward. or perhaps these, hung on rings - seem to pick up your colors, at least on the monitor:

raynier stripe in tuscany colorway

Here's my thinking on curtains. You do have to kind of narrow down the search a bit to what style you are looking for to accent your room, provide any privacy or light management you want, and work with your room and furniture. In that regard, I think your idea to do panels on rings sounds very good in that pretty space.
Next, you need to decide about fabric. Will a silk or satin-look panel be "user-friendly" in a patio slider application that (presumably) gets high traffic/lots of use? Will it complement your existing style and furnishings? Again, I think you're right on track to say No, even though they are muy bonita. Something in linen, in washable fabric like a poly blend, something in a cotton or even a chenille, might be a better choice for that door area.
Now, do you buy something ready-made or do you have it custom-made, or do you get after it yourself? Options 2 and 3 give you the most flexibility in style and fabric, but the price of custom and your sewing ability can absolutely kill either option. So, are you doing ready-made or one of the other two choices?
Now.......if you want to have them done or make them, then, the world is your oyster. JoAnns fabrics has some great decorator choices right now in fabrics. In fact, I bought this nice tone on tone textured chenille for my own drapery project in the fall.

{{!gwi}}

But, if you are going to be out hitting the sidewalks looking for panels, may I suggest that you do a bunch of looking, maybe even bringing home some possibles that appeal to you and look like they will work in your room. Take your paint chip with you to Bed Bath & Beyond, Linens N' Things, JCPenney, Tuesday Morning, etc., so you don't have to imagine the color. Make sure you know exactly what length you need. And try to find 50" wide panels minimum. They look nicer and hang nicer.

Red

Hello,

les - I like the Tuscany stripe...I plan on checking out JC Penney, so I will look for this one in the store. Thanks!

Red - I'm going ready-made at this point. I've gone the custom route before, and I don't really want to put too much money in the curtains right now since we have so many windows to cover, as well as other "new home" needs like landscaping, etc.

Elaine

When I think cottage beach style, I think linens, cotton weaves, woven stripes and plaids, lightweight jacquards...