I created new awnings in Photoshop (stains and all), printed on medium laser stock. Built a small styrene support frame and CA’d the paper to that (the small bleeds of CA helped the weathered effect). Then simply used thinned acrylic matte black for a bit more stains. Last step was to use a Dremel to scuff the edges, fringe, and profile curve to get a canvas effect. This is my first pass at this, biggest thing I’d change is the overall size, I think this is a bit ‘big’ for the building.
http://i.imgur.com/bRzbw2Yh.jpg
http://i.imgur.com/10a9EU3h.jpg