What about one of the tunic-y tops Express has right now? Sorry, could not get pic to post. The grey one with the tie/cinched waist that you can wear down on the hip?
...High expecations are such trouble-makers...http://www.confessionsofthecaffeinated.blogspot.com
If you are going to wear a low slung belt, I would wear a longer top, too.
As far as shoes, I would either wear metallic flats or wedges of some kind.
Edited to add shoes:
or you could wear boots: