A picture of your room layout would help! Without seeing that, it's difficult to make suggestions. That's a pretty heavy color scheme, so I'd paint the walls in a very light tan, with a white ceiling I'd group the pictures together, so that they are a collection rather than Alabama "stuff" scattered about.

You need to look at several websites for curtains in order to decide on what you like. I'd think about white or off-white, but it depends on the size and placement of your windows. It could be that your room would look best with roll-up woven blinds, or Romans. Likewise, look at some furniture sites - or go window-shopping in your town - to decide what style sofa you like.

Below is just one site for curtains. J.C.Penney's, Pottery Barn, and Sears also have a good selection of window treatments.

I would also think about something in light blue or green to contrast with the very autumny colors you already have.

Roll Tide!

Here is a link that might be useful: Curtains/Drapes