I'm not sure if it's still called an altar if you arent getting married in a church, but whatever its called I think we need one.
Because there is nothing really special behind us where we say our vows..
For a while there I was thinking we needed a full blown backdrop.
But now I've changed my mind, there isn't a need to block anything out, maybe just close the expansive space in a little, bring the focus to where we will be standing
Something like these:
photo by Lisa Lefkowitz via Style Me Pretty
Or here is another option along the same lines..
Its sort of simple and rustic, not too obstructive and would be fairly easy to put together...